publication venue for
- Gronwall's Inequality and the Henstock Integral.. 28:370-374. 1987
- Minimax principles for convex eigenvalue problems. 102:328-347. 1984
- Nonlinear eigenvalue problems with positively convex operators. 51:653-669. 1975
- On the number of solutions of boundary value problems with convex nonlinearities. 35:389-404. 1971