-Caunhye, A.M. et al., (2016), "A location-routing model for prepositioning and distributing emergency supplies". Transportation Research Part E, 90,
pp.161–176. Available at: http://dx.doi.org/10.1016/j.tre.2015.10.011.
-Cominetti, R. & San Martín, J., (1994), "Trajectory analysis for the exponential penalty method in linear programming. Math. Programming, 67, pp.169–187.
-Fiacco, A. V, (1979), "An Exponential Penalty Method for Nondifterentiable Minimax Problems with General Constraints". , (2), pp.205–219.
-Invexity, E., Jayswal, A. & Choudhury, S., (2014), "An Exact l 1 Exponential Penalty Function Method for Multiobjective Optimization Problems", 2012(41),
pp.75–91.
-Khayal, D. et al., (2015), "A model for planning locations of temporary distribution facilities for emergency response". Socio-Economic Planning Sciences, 52, pp.22–30. Available at: http://dx.doi.org/10.1016/j.seps.2015.09.002.
-Lam, S.S.W. et al., (2015), "Dynamic ambulance reallocation for the reduction of ambulance response times using system status management". American Journal of Emergency Medicine, 33(2), pp.159–166. Available at: http://dx.doi.org/10.1016/j.ajem.2014.10.044.
-Nguyen, V.H. & Strodiot, J.J., )1979(, "On the convergence rate for a penalty function method of exponential type". Journal of Optimization Theory and Applications, 27(4), pp.495–508.
-Nickel, S., Reuter-Oppermann, M. & Saldanha-da-Gama, F., (2016), "Ambulance location under stochastic demand: A sampling approach". Operations Research for Health Care, 8, pp.24–32. Available at: http://dx.doi.org/10.1016/j.orhc.2015.06.006.
-Owen, S.H. & Daskin, M.S., (1998), "Strategic facility location: A review". European journal of operational research, 111(3), pp.423–447.
-White, D.J., (1984), "Multiobjective programming and penalty functions". Journal of Optimization Theory and Applications, 43(4), pp.583–599.
)