On lifted cover inequalities: A new lifting procedure with unusual properties. - Adam N. Letchford; Georgia Souli (Oper. Res. Lett., 2019)

New valid inequalities for the fixed-charge and single-node flow polytopes. - Adam N. Letchford; Georgia Souli (Oper. Res. Lett., 2019)

Valid inequalities for mixed-integer programmes with fixed charges on sets of variables. - Adam N. Letchford; Georgia Souli (Oper. Res. Lett., 2020)

Lifting the knapsack cover inequalities for the knapsack polytope. - Adam N. Letchford; Georgia Souli (Oper. Res. Lett., 2020)