Ansari, A. Z.; Koh, S. S.; Zaman, Z.; Bongards, C.; Lehming, N.; Young, R. A.; Ptashne, M. Proceedings of the National Academy of Sciences of the United States of America (2002)
Zaman, Z.; Ansari, A. Z.; Koh, S. S.; Young, R.; Ptashne, M. Proceedings of the National Academy of Sciences of the United States of America (2001)
Zaman, Z.; Ansari, A. Z.; Gaudreau, L.; Nevado, J.; Ptashne, M. Cold Spring Harbor Laboratory Press (1998)