Beal P.A. and Dervan P.B., 1991
Beal P.A. and Dervan P.B., 1992
Dervan P.B., 1992
Han H. and Dervan P.B., 1993
Haner R. and Dervan P.B., 1990
Koh J.S. and Dervan P.B., 1992
Maher III L.J. ea, 1992
Maher L.J. ea, 1989
Moser H.E. and Dervan P.B., 1987
Strobel S.A. and Dervan P.B., 1990
Strobel S.A. and Dervan P.B., 1991
Strobel S.A. ea, 1988
