Persons RUS  ENG    JOURNALS   PEOPLE   ORGANISATIONS   CONFERENCES   SEMINARS   VIDEO LIBRARY   PACKAGE AMSBIB     Dragan, F F https://www.mathnet.ru/eng/person29796 List of publications on Google Scholar https://mathscinet.ams.org/mathscinet/MRAuthorID/294704 Publications in Math-Net.Ru Citations 1992 1. F. F. Dragan, K. F. Prisakar', V. D. Chepoi, “The location problem on graphs and the Helly problem”, Diskr. Mat., 4:4 (1992),  67–73       1