1. Arcoya D, Gámez JL: Bifurcation theory and related problems: anti-maximum principle and resonance. Commun. Partial Differ. Equ. 2001, 26(9-10):1879-1911. 10.1081/PDE-100107462
2. Ambrosetti A, Arcoya D, Buffoni B: Positive solutions for some semi-positone problems via bifurcation theory. Differ. Integral Equ. 1994, 7(3-4):655-663.
3. Hai DD: Singular elliptic systems with asymptotically linear nonlinearities. Differ. Integral Equ. 2013, 26(7-8):837-844.
4. Hai DD, Sankar L, Shivaji R: Infinite semipositone problems with asymptotically linear growth forcing terms. Differ. Integral Equ. 2012, 25(11-12):1175-1188.
5. Peng C: Asymptotically linear elliptic systems with parameters. Glasg. Math. J. 2010, 52(2):383-389. 10.1017/S0017089510000078