- On a class of regular functions, Dokl. AN SSSR 110, (1956), \# 1, 27-30 (in Russian).
- On a subcone of the cone of the regular-monotone functions, the sighs of the derivatives of which change periodically God. Sof. Univ. Phis.-Math. Fac., 50, (1958), n. 1, 109-120 (in Bulgarian).
- On the expansion of the regular-monotone function in Goncharov series, Dokl. AN SSSR 118 (1958) n. 3, 450-453 (in Russian).
- A note on the theorem of Gauss for the distribution of the zeros of a polynomial on the complex plane, Fiz.-math. sp., 1, (1958) n. 3-4, 169-171 (with T. Genchev, in Bulgarian).
- An integral inequality for algebraic polynomials with only real zeros, God. Sof. Univ. Phis.-Math. Fac., 53 (1959), n. 1, 19-32 (in Bulgarian).
- Symmetrical flow around circular cylinder with two vortices behind it. Trajectory of the vortices and resistance of the cylinder, Dokl. AN SSSR 128 (1959), n. 1, 53-59 (with Bl. Dolapchiev, in Russian).
- On some properties of the regular-monotone functions, Izv. Math. Inst. of BAS, 3, (1959), n. 2, 63-68.
- The trajectory of a vortex pair behind a circular cylinder and it’s connection with the resistance of the cylinder, Izv. Math. Inst. of BAS, 3 (1959), n. 2, 213-243 (with Bl. Dolapchiev, in Bulgarian).
- The Theorem of Vahlen for singular continued fractions and continued fractions of the nearest natural number, God. Sof. Univ. Phis.-Math. Fac., 54, (1961), n. 1, 251-258 (in Bulgarian).
- On the equations in words, Z. math. Logik Grundlagen Math. (Berlin), 7, (1961). 289-297 (in Russian, with D. Skordev).
- $\varepsilon$-entropy and $\varepsilon$-capacity of the set of continuous functions, Vestnik MGU, 17, (1962), n. 3, 15-19 (in Russian, with S. Dimiev and B. Penkov).
- $\varepsilon$-entropy and $\varepsilon$-capacity of the set of continuous curves, Vestnik MGU, 17, (1962), n. 3, 20-23 (in Russian, with B. Penkov).
- Approximation of functions with algebraic polynomials in respect to a metric of Hausdorff type, God. Sof. Univ. Phis.-Math. Fac., 55, (1962), 1-39 (in Bulgarian).
- Eine Aufgabe aus der Kombinatorik, C. r. Acad. Bulgare Sci., 15, (1962), n. 1, 5-8.
- Graphs, connected with mechanisms, C. r. Acad. Bulgare Sci., 15, (1962), n. 2, 111-113 (in Russian, with N. Martinov).
- Frequencies of Letters in Written Bulgarian, C. r. Acad. Bulgare Sci., 15, (1962). n. 3, 243-244 (with B. Penkov and others).
- $\varepsilon$-entropy and $\varepsilon$-capacity of the space of continuous functions, Izv. Math. Inst. of BAS, 6, (1962), 27-50 (with B. Penkov, in Bulgarian).
- Machines for education, Sp. Mathematica, Sofia, 1, (1962) n. 2, 32-35 (with B. Penkov, in Bulgarian).
- Let us think on mathematics, Sp. Mathematica, Sofia, (1962), n. 1, 4-6 (with B. Penkov, in Bulgarian).
- Rational zeros of algebraic equations, Sp. Mathematica, Sofia,} 0, (1962), n. 1, 27-30 (in Bulgarian).
- Graphs with a completeness operation, God. Sof. Univ. Phis.-Math. Fac., 54, (1963), n. 1, 127-139 (with N. Martinov, in Bulgarian).
- Axiomatic and automatic verification of block- schemes, God. Sof. Univ. Phis.- Math. Fac., 56, (1963), n. 1, 158-190 (with E. Dimitrov and V. Spiridonov, in Bulgarian).
- On the best approximation with algebraic polynomials in respect to Hausdorff distance, God. Sof. Univ. Phis.-Math. Fac., 56, (1963), n. 1, 195-207 (in Bulgarian).
- $\varepsilon$-entropy and $\varepsilon$-capacity of the set of the monotone functions, Uspehi math. nauk, 18, (1963), n. 2, 155-158 (in Russian).
- Axiomatik der Blokschemata und automatische Programmkontrolle, in: Int. Kolloquium, uber aktuelle Probleme der Rechentechnik. II. Dresden, 1962. Vortrage, Dresden, 1963, 61-63.
- Approximation bezuglich einer Hausdorffschen Metrik mittels algebraischer Polynome, in: Int. Kolloquium uber aktuelle Problemeder Rechentechnik. II. Dresden, 1962. Vortrage, Dresden, 1963, 121-122.
- Machines helping the human brain, Narodna prosveta, Sofia 1963 (in Bulgarian).
- Bulgaria is building socialism, Sp. Mathematica, Sofia, 1, (1963) n. 6, 1-3 (in Bulgarian).
- Approximation of functions with algebraic polynomials in respect to a metric of the Hausdorff type, Review of the PhD thesis, Sofia University, 1964.
- On the graphs with a completeness operation, God. Sof. Univ. Phis.-Math. Fac., 57, (1964) 291-305 (with N. Martinov, in Bulgarian).
- Mathematics and computing technic, God. Sof. Univ. Phis.-Math. Fac., 57, (1964) 307-316 (in Bulgarian).
- Entropy of the continuous functions of many variables, C. r. Acad. Bulgare Sci., 17, (1964), n. 4, 335-337 (with B. Penkov, in Russian).
- On widths of the space of continuous functions, C. r. Acad. Bulgare Sci., 17, (1964), n. 8, 689-691 (with B. Penkov).
- On a method for approximation of periodic functions with trigonometric polynomials, Tr. Math. Inst. Hungarian Acad. of Sciences, 9A (1964) n. 3, 491-494. (with G. Freud, in Russian).
- Figures with constant width, Sp. Mathematics, Sofia, 3, (1964), n. 1, 12-15 (in Bulgarian).
- On the theory of graphs, Sp. Mathematica, Sofia, 3, (1964), n. 6, 1-5 (in Bulgarian).
- On some linear methods for approximation of periodic functions in respect to the Hausdorff distance, God. Sof. Univ. Phis.- Math. Fac., 58, (1965), 107-140 (in Bulgarian).
- Linear methods for approximation of periodic functions in respect to a metric of Hausdorff type, Dokl. AN SSSR} 160 (1965), n. 5, 1023-1025 (in Russian).
- Linear methods for approximating periodic functions with respect to a metric of Hausdorff type, C. r. Acad. Bulgare Sci., 18, (1965), n. 5, 253-255.
- On an estimate of the approximation of functions with Bernschtein polynomials, Mathematica, Cluj, 7, (1965) n. 1, 145-154.
- Orthogonale Systeme in einigen Klassen von Polynomenfolgen, Wiss. Z. Hochsch. Architektur Bauwesen, Weimar, 12, (1965), n. 5-6, 517 – 519 (with L. Iliev).
- Contemporary calculating machines, Sp. Mathematica, Sofia, 4, (1965), n. 2, 8-16; n. 3, 10-16; n. 4, 13-19; n. 6, 27-31 (in Bulgarian).
- On some properties of the Hausdorff metric, Mathematica, Cluj, 7, (1965), n. 1, 145-154 (with V. Popov).
- On the best approximation in respect to the Hausdorff distance, God. Sof. Univ. Phis.-Maih. Fac., 59, (1966), 85-103 (in Bulgarian).
- A model of the regulatory mechanism of cellular proliferation, C. r. Acad. Bulgare Sci., 19, (1966), n. 9, 835-838 (with R. Tzanev).
- A model of the regulatory mechanism of cellular multiplication, J. Theoret. Biol., New York, 12, (1966), 327-341 (with R. Tzanev).
- Hausdorffsche Metrik und Approximationen, Numerische Math., Berlin, 9, (1966), 214-226 (with B. Penkov).
- Electronic machines, Technika, Sofia, 1966 (in Bulgarian, with D. Bogdanov and others).
- Mathematical methods for classification, Sp. Mathematica, Sofia, 5, (1966), n. 5, 16-20. (in Bulgarian).
- Approximation of plane point sets with polynomial curves, God. Sof. Univ. Math. Fac., 60, (1967), 211-222 (in Bulgarian).
- On the convergence of a sequence of linear positive operators, God. Sof. Univ. Math. Fac., 60, (1967), 279-296 (in Bulgarian).
- On P. Korovkin’s Theorems for Convergence of Sequences of Linear Positive Openitors, Dokl. AN SSSR, 177, (1967), n. 3, 518-520 (in Russian); Soviet Math. Dokl., 8, (1967), n. 6, 1445-1447.
- On the interpolational process of Fejer Izv. Math. Inst. BAS, 9, (1967), 133-145.
- Approximation with stepwise functions with respect to Hausdorff distance, Math. Zametki 2, (1967), n. 1, 61-67 (in Russian).
- Distance, Fiz.-math, sp., Sofia,
- On the numerical calculation of a class of polynomials of best approximation, God. Sof. Univ. Math. Fac., 61, (1968), 17-27 (with Sv. Markov, in Bulgarian).
- Modeling of the regulatory mechanism of the cellular proliferation in the liver, Central. Biochem. Lab. BAS, 3, (1968), 21-35 (with R. Tzanev).
- Approximation with respect to Hausdorff distance, Math. Zametki, 3, (1968), n. 4, 481-494 (in Russian; DSc thesis, Moscow, 1967).
- Computer studies on the mechanism controlling cellular proliferation, in: Effects on radiation on cellular proliferation and differentiation. Vienna, Int. Atomic Energy Agency. 1968, 453-461 (with R. Tzanev).
- Computer simulation of the regenerative processes in the liver, J. Theoret. Biol., New York, 18, (1968), 90-104 (with R. Tzanev).
- Electronic calculating machines, MNP, Sofia, 1968 (in Bulgarian).
- Convergence of the derivatives of the linear positive operators, C. r. Acad. Bulgare Sci. 22, (1969), n. 5, 507-509 (in Russian).
- A possible mechanism for cellular differentiation, C. r. Acad. Bulgare Sci., 22, (1969), n. 12, 1433-1436 (with R. Tzanev).
- On the widths of the space of the continuous functions, Izv. Math. Inst. BAS 10, (1969), 5-15 (with B. Penkov, in Bulgarian).
- Certain questions in the theory of approximation of functions and sets in the Hausdorff metric, Uspehi Mat. Nauk,} {\bf 24}, (1969), n. 5, 143-180 (in Russian); Russian Math. Surveys, 24, (1968), n. 5, 143-183.
- Computer simulation of the regulatory mechanisms of cellular proliferation, Inform. Processing, Amsterdam, 68 (1969), 1506-1507 (with R. Tzanev).
- A model of cancer studies by a computer, J. Theoret. Biol., New York, 23, (1969), 124-134 (with R. Tzanev).
On a type of regular-monotone functions, Izv. Math. Inst. BAS, 3, (1958), n. 1, 89-104 (in Bulgarian).
6/B>, (1967) n. 2, 14-17.
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