Jan Camiel Willems
Jan Camiel Willems ( 18 September 1939 – 31 August 2013 ) was a Belgian mathematical system theorist who has done most of his scientific work while residing in the Netherlands and the United States . 
<triplet> Jan Camiel Willems <subj> 18 September 1939 <obj> date of birth <subj> 31 August 2013 <obj> date of death