| 1.
図書 |
図書
|
L. A. Liusternik and V. J. Soboley Tr. from the Russian by Anthony E. Labarre, Jr., Herbert Izbicki and H. Ward Crowley
|
||||||
| 2.
図書 |
図書
|
L.A. Lusternik, V.J. Sobolev
|
