1. Alongi, D.M.: Present state and future of the world’s mangrove forests. Environment Conservation 29(3), 331–349 (2002)
2. Arrow, k, Kuez, M.: Optimal Growth with Irreversible Investment in a Ramsey Model. Ecnometrica 38(2), 331–344 (1970)
3. Berryman, Alan A.: The origins and evolution of predator-prey theory. Ecology 73(5), 1530–1535 (1992)
4. Biswas, M.H.A.: Necessary conditions for optimal control problems with state constraints: Theory and applications, PhD Thesis, Department of Electrical and Computer Engineering, Faculty of Engineering, University of Porto, Portugal (2013)
5. Biswas, M.H.A., de Pinho, M.R.: A maximum principle for optimal control problems with state and mixed constraints. ESAIM: Control, Optimization and Calculus of Variations 21(4), 939–957 (2015)