In 1994 Hazewinkel was elected member of the International Academy of Computer Sciences and Systems .
Hazewinkel was member of 15 professional societies in the field of Mathematics , and participated in numerous administrative tasks in institutes , Program Committee , Steering Committee , Consortiums , Councils and Boards .
In 1994 member was elected member of the International Academy of Computer Sciences and Systems .
Hazewinkel was member of 15 professional societies in the field of Mathematics , and participated in numerous administrative tasks in institutes , Program Committee , Steering Committee , Consortiums , Councils and Boards .