Normal view
MARC view
Petrushev, P. P. (Penco Petrov), 1949- (Personal Name)
His Rational approximation of real functions, 1987: CIP t.p. (P.P. Petrushev; Bulgarian Academy of Sciences)
Phone call to pub., 12/16/86 (Penco Petrov Petrushev; b. 6/19/49)