Tetrahedron
Tetrahedron > 2010 > 66 > 4 > 935-939
Tetrahedron > 2010 > 66 > 26 > 4832-4840
Tetrahedron > 2010 > 66 > 33 > 6597-6605
Tetrahedron > 2010 > 66 > 33 > 6483-6495
Tetrahedron > 2010 > 66 > 34 > 6842-6850
Tetrahedron > 2010 > 66 > 38 > 7504-7509