1
Publicado em: 1987
2
Publicado em: 1987
Superior document: Heterogeneous catalysis proceedings of the sixth international symposium, [Sofia, July 13 - 18, 1987] 2
3
Publicado em: 1987
Superior document: Heterogeneous catalysis proceedings of the sixth international symposium, [Sofia, July 13 - 18, 1987] 1