You can see some of his papers here: http://ieeexplore.ieee.org/xpl/tocresult.jsp?filter%3DAND%28p_IS_Number%3A4074002%29&refinements=4224779446&pageNumber=1&re

You can see some of his papers here: http://ieeexplore.ieee.org/xpl/tocresult.jsp?filter%3DAND%28p_IS_Number%3A4074002%29&refinements=4224779446&pageNumber=1&resultAction=REFINE http://ieeexplore.ieee.org/xpl/tocresult.jsp?filter%3DAND%28... Or http://ieeexplore.ieee.org/document/4074017/ http://ieeexplore.ieee.org/document/4074017/ and https://www.sciencedirect.com/science/article/pii/S030402080872646X https://www.sciencedirect.com/science/article/pii/S030402080... Unfortunately, these seem to be behind a paywall. Here is one that might be more relevant: http://bonneville.ipac.dynixasp.com/ipac20/ipac.jsp?session=14969S080LH54.28062&profile=law&page=17&group=1&term=*&index=.GW&uindex=&aspect=subtab114&menu=search&ri=1&ultype=LO01&uloper=%3D&ullimit=p&source=~!horizon&1496910808509 http://bonneville.ipac.dynixasp.com/ipac20/ipac.jsp?session=... His work centered around control systems, but he was very heavy on numerical methods.