by (United States)E.M.Purcell;by (United States)W.K.H.Panofsky; by (United States)E.G.Pare;by (United States)J.H.Minnick; by (United States)E.Mansfield;by (United States)R.S.Pindyck; by (United States)E.N.Marvell;by (United States)E.N.Marvell; by (United States)E.G.Brame;by (United States)L.H.Peebles; by (United States)E.G.Brame;by (United States)R.H.Romer; by (United States)E.M.Loebl;by (United States)J.E.Marsden; by (United States)W.J.Vick;by (United States)J.H.Baues; by (United States)P.M.Duffieux;by (United States)W.F.Donoghue; by (United States)A.K.Kamal;by (United States)W.T.Keeton;