00398nam a2200097Ia 4500008004100000082002000041100007100061245012100132260003700253300001000290260420b        |||||||| |||| 00| 0 eng d  a515.72bC998.TN  aCzechoslovakia Academy of Sciences. Mathematical Institute, Prague  aTheory of non-linear operatorsb; proceedings of a summer school held in September 1971 at Babylon, Czechoslovakia /  aNew York:bAcademic Press,c1973  a207p.