APA ציטוט

(1989). Variational principles for nonpotential operators / V.M. Filippov ; [translated from the Russian by J.R. Schulenberger].

Chicago Style (17th ed.) Citation

Variational Principles for Nonpotential Operators / V.M. Filippov ; [translated from the Russian by J.R. Schulenberger]. 1989.

ציטוט MLA

Variational Principles for Nonpotential Operators / V.M. Filippov ; [translated from the Russian by J.R. Schulenberger]. 1989.