“…In this respect, nonlinearity represents a challenge for feasibility because it is more difficult to reflect simultaneous nonlinear influence of the inputs on the output [21,45,59,82,102,124,135,138]. In this respect, nonlinearity represents a challenge for feasibility because it is more difficult to reflect simultaneous nonlinear influence of the inputs on the output [21,45,59,82,102,124,135,138].…”