Attaby, F. A., S. M. Eldin, M. A. A. Elneairy, and A. K. K. El-louh,
"Novel synthesis of pyridothienopyrimidines and pyrazolinothienopyridines",
Biannual Conference on Chemistry, Chem 02, Chemistry Department, Faculty of Science, Cairo University, Giza, A. R. Egypt 51 , 4-7 March, 2002.