2002 , Collins, Jean , Kaba, Fode Karim
2005 , Webster, Janet , Collins, Jean
2012 , Collins, Jean , Webster, Janet
2004 , Haas, Stephanie C. , Simpson, Pauline , Watkins, Steven G. , Belich, Daniel , Collins, Jean
1996 , Collins, Jean
2002 , Collins, Jean
1998 , Collins, Jean
1993 , Collins, Jean