by (United States)Glenn Dryhurst;by (United States)Jitendra C.Parikh; by (United States)Glenn Kirchner;by (United States)Richard T.Schaeffr; by (United States)J.Glenn Brookshear;by (United States)Robert Jurmain; by (United States)G.I.Marchuk;by (United States)J.C.Nash; by (United States)F.Hennie;by (United States)C.R.Parish; by (United States)G.A.Churchill;by (United States)Johannes F.Linn; by (United States)Gilbert Strang;by (United States)Jerry L.Mashaw; by (United States)G.R.Gruber;by (United States)J.Glaser; by (United States)Mark L.Knapp;by (United States)Saundra Hybels; by (United States)Perry J.R.;by (United States)Wallace C.P.;