Pergamon Press1981Pergamon international library of science, technology, engineering and social studies
, International series in nonlinear mathematics
v. 4
Pergamon Press1981International series in nonlinear mathematics
v. 3 , Pergamon international library of science, technology, engineering and social studies
Pergamon Press1980International series in nonlinear mathematics
v. 1 , Pergamon international library of science, technology, engineering and social studies