FAMILY IS THE FOUNDATION FOR CHILD HEALTH [SEMIIA -- OSNOVA ZDOROVIIA DETEI.] Статья Stepanov S.M., Ermokhina T.L., Kicha D.I., Vazhnova T.V. Problemy sotsialnoi gigieny i istoriia meditsiny / NII sotsialnoi gigieny, ėkonomiki i upravleniia zdravookhraneniem im. N.A. Semashko RAMN ; AO "Assotsiatsiia 'Meditsinskaia literatura'.". 1994. С. 17-19
ON DIFFERENTIAL EQUATIONS OF SMOOTH LOOPS Статья Sabinin L.V. Russian Mathematical Surveys. Том 49. 1994. С. 172-173