Influence of controllable lead time, premium price, and unequal shipments under environmental effects in a supply chain managementBaishakhi Ganguly, Biswajit Sarkar, Mitali Sarkar, Sarla Pareek and Muhammad OmairRAIRO-Oper. Res., 53 4 (2019) 1427-1451DOI: https://doi.org/10.1051/ro/2018041