por Society Of Petroleum Engineers. Western Regional Meeting.
por Western Regional Meeting (1995 : Bakersfield, California) | Society of Petroleum Engineers (Estados Unidos).
por Western Regional Meeting (64 : 1994 : Long Beach, California) | Society of Petroleum Engineers (Estados Unidos).
por Western Regional Meeting (68 , 1998 ; Bakersfield,Californi-a, USA).
por Western Regional Meeting 1996 : Anchorage) | Society of Petroleum Engineers (Estados Unidos).
por Western Regional Meeting (1997 : Long Beach, California) | Society of Petroleum Engineers (Estados Unidos).
por Western regional meeting (19-23 june 2000, Long Beach, Cali-fornia).
por Western regional meeting (26-30 march 2001 : Bakersfield, C-alifornia USA).