Nikitichev P I

Publications in Math-Net.Ru

1. Passive faces and defective surfaces of crystals
   
   Dokl. Akad. Nauk SSSR, 199:2 (1971),  327–330
2. On the growth of hexagonal prism faces in quartz crystals
   
   Dokl. Akad. Nauk SSSR, 192:5 (1970),  1040–1042