Burdujan, Ilie: Classification of quadratic differential systems on R [sup] 3 having a nilpotent of order 3 derivation. (English summary). - Libertas Math. 29 (2009), 47-64Mencinger, Matej (Avtor) 20112015-07-10 15:24:20Delo ni kategorizirano51912UDK: 517.91(049.3)OceCobissID: 50093825COBISS_ID: 16122969NUK URN: URN:SI:UM:DK:0TUFNUTMsl