Polyhedron 1989-05 #47
Polyhedron
Polyhedron 1989-03 #46
Polyhedron 1989-01 #45
Polyhedron 1988-09 #43
Polyhedron 1989-07 #48
Polyhedron 1989-09 #49
Polyhedron 1988-03 #40
Polyhedron 1988-07 #42
Polyhedron 1987-11 #38
Polyhedron 1987-09 #37
Polyhedron 1987-07 #36
Polyhedron 1988-05 #41
Polyhedron 1988-01 #39
Polyhedron 1987-05 #35
Polyhedron 1986-10 #32
Polyhedron 1986-08 #31
Polyhedron 1986-04 #29
Polyhedron 1986-02 #28
Polyhedron 1985-11 #27
Polyhedron 1985-07 #25