1
by Boboc, N., Mustata, P.
Published 1968
Springer Berlin Heidelberg

2
by Boboc, N., Bucur, G., Cornea, A.
Published 1981
Springer Berlin Heidelberg

3
Published 1983
Springer Berlin Heidelberg
Other Authors: '; ...Boboc, N....

4
Published 1983
Springer Berlin Heidelberg
Other Authors: '; ...Boboc, N....