THE STRUCTURE OF A CONTROLLABILITY REGION Статья ZVERKIN A.M., ROZOVA V.N. Differential Equations. Том 18. 1982. С. 186-190
CONSTRUCTION OF DIFFERENTIAL-EQUATION SYSTEMS IN 3-DIMENSIONAL SPACE FROM PROPERTIES OF THEIR INTEGRAL CURVES Статья VOLKOV S.V. Differential Equations. Том 18. 1982. С. 409-414
DETERMINATION OF THE FORCE FUNCTION FROM A GIVEN INTEGRAL OF THE EQUATION OF MOTION Статья GALIULLIN A.S. Differential Equations. Том 18. 1982. С. 530-532
INEQUALITIES FOR VALUES OF DIFFERENTIAL-OPERATORS ON ALGEBRAIC POLYNOMIALS ON A SPHERE Статья ZHIDKOV G.V. Differential Equations. Том 17. 1981. С. 329-336