Ivanov A D

Publications in Math-Net.Ru

1. Four-dimensional Bol webs of parabolic type
   
   Izv. Vyssh. Uchebn. Zaved. Mat., 1976, no. 1,  42–47
2. Four-dimensional Bol webs of elliptic or hyperbolic type
   
   Izv. Vyssh. Uchebn. Zaved. Mat., 1975, no. 9,  25–34