PERIODIC SOLUTIONS OF DIFFERENCE RUNGE-KUTTA SCHEMES Article Rozhkov V.I., Popov A.M. Mathematical Notes. Vol. 49. 1991. P. 617-620
SYNTHESIS AND FUNGICIDAL ACTIVITY OF SUBSTITUTED 4-AMINOPIPERIDINES AND 4-AMINOTETRAHYDROPYRIDINES Article Mandal T.K., Mobio I.G., Kuznetsov V.V., Litvinov A.Zh., Denisov E.N., Fedorov V.O., Andreeva E.I., Soldatenkov A.T., Prostakov N.S. Pharmaceutical Chemistry Journal. Vol. 25. 1991. P. 382-388