R. P. Zimmerman Phases, Methods and Tools - A Triad of System Development. 131-151 1983 ER db/conf/er/er83.html#Zimmerman83 conf/er/83 db/conf/er/Zimmerman83.html er83/ER83-P131.pdf journals/tods/Chen76 conf/er/Chen81 ... conf/er/Davenport79 ... journals/ibmsj/Davis82 ... ... ... ... ... journals/tse/HamiltonZ76 ... ... ... ... ... ... ... ... ... ... ... conf/er/TeichroewMHY79 conf/er/TeichroewGS81 ... ... ... ... ...