J. I. Mateo. Quaderns. 192 1992, 23 Josep Lluis Mateo. Quaderns. 192 1992, 28 Andres Keller, Michael D Mackaulay. Quaderns. 198 1993, 17 Max Bosshard, Christoph Luchsinger. Quaderns. 198 1993, 80 J. A. Martinez Lapena, Elias Torres, Miguel Usandizaga. Quaderns. 196 1992, 19 Inaki Abalos, Juan Herreros. Quaderns. 198 1993, 73 Bea Goller i Yago Conde. Quaderns. 192 1992, 31 Eduard Bru. Quaderns. 190 1991, 75 Josep Lluis Mateo. Quaderns. 192 1992, 29 Eduard Bru. Quaderns. 190 1991, 73