TY - JOUR AU - Ahmad, Firoz AU - Ahmad, Shafiq AU - Soliman, Ahmed T. AU - Abdollahian, Mali TI - Solving multi-level multiobjective fractional programming problem with rough interval parameter in neutrosophic environment JO - RAIRO. Operations Research PY - 2021 SP - 2567 EP - 2581 VL - 55 IS - 4 PB - EDP-Sciences UR - https://www.numdam.org/articles/10.1051/ro/2021108/ DO - 10.1051/ro/2021108 LA - en ID - RO_2021__55_4_2567_0 ER -