Nonlinear Analysis Theory and Applications: Proceedings of the Seventh International Summer School held at Berlin, GDR from August 27 to September 1, 1979: 1981, 2
![Nonlinear Analysis Theory and Applications: Proceedings of the Seventh International Summer School held at Berlin, GDR from August 27 to September 1, 1979: 1981, 2](https://r.kelkoo.com/resize.php?country=se&merchantId=100565793&categoryId=5101&trackingId=96964074&width=300&height=300&image=https%3A%2F%2Fm.media-amazon.com%2Fimages%2FI%2F31Kb63ay4wL._SL500_.jpg&sign=uA7EKZOA_3VYbmewCglu8DsR7wJa7FknB5tHBbvBOW0-)
Nonlinear Analysis Theory and Applications: Proceedings of the Seventh International Summer School held at Berlin, GDR from August 27 to September 1, 1979: 1981, 2