Tetrahedron
Tetrahedron > 2002 > 58 > 9 > 1773-1778
Tetrahedron > 2002 > 58 > 21 > 4267-4271
Tetrahedron > 2002 > 58 > 23 > 4669-4673
Tetrahedron > 2002 > 58 > 23 > 4643-4654
Tetrahedron > 2002 > 58 > 35 > 7153-7163
Tetrahedron > 2002 > 58 > 35 > 6991-7000
Tetrahedron > 2002 > 58 > 37 > 7503-7518