//-->
Identifying the set of always-active constraints in a system of linear inequalities by a single linear program
Freund, Robert Michael., (1985)
A potential-function reduction algorithm for solving a linear program directly from an infeasible "warm start"
Freund, Robert Michael., (1989)
An infeasible-start algorithm for linear programming whose complexity depends on the distance from the starting point to the optimal solution
Freund, Robert Michael., (1993)