TY  - SER
AU  - Petrov Petrov, Stoiko
TI  - Conditions  for  Obtaining Ultrafiltration Membranes from a Solution of Polyacrylonitrile in Dimethyl Formamide InPresence of  Formamide
KW  - Ultrafiltration Membrane
KW  - Polyacrylonitrile
KW  - Dimethyl Formamide
ER  -