Mahmoudi, Monirehalsadat, Chen, Junhua, Shi, Tie, Zhang, Yongxiang, and Zhou, Xuesong. A cumulative service state representation for the pickup and delivery problem with transfers. Retrieved from https://par.nsf.gov/biblio/10124684. Transportation Research Part B: Methodological 129.C Web. doi:10.1016/j.trb.2019.09.015.

Mahmoudi, Monirehalsadat, Chen, Junhua, Shi, Tie, Zhang, Yongxiang, & Zhou, Xuesong. A cumulative service state representation for the pickup and delivery problem with transfers. Transportation Research Part B: Methodological, 129 (C). Retrieved from https://par.nsf.gov/biblio/10124684. https://doi.org/10.1016/j.trb.2019.09.015

Mahmoudi, Monirehalsadat, Chen, Junhua, Shi, Tie, Zhang, Yongxiang, and Zhou, Xuesong. "A cumulative service state representation for the pickup and delivery problem with transfers". Transportation Research Part B: Methodological 129 (C). Country unknown/Code not available. https://doi.org/10.1016/j.trb.2019.09.015. https://par.nsf.gov/biblio/10124684.

@article{osti_10124684,
place = {Country unknown/Code not available}, title = {A cumulative service state representation for the pickup and delivery problem with transfers}, url = {https://par.nsf.gov/biblio/10124684}, DOI = {10.1016/j.trb.2019.09.015}, abstractNote = {}, journal = {Transportation Research Part B: Methodological}, volume = {129}, number = {C}, author = {Mahmoudi, Monirehalsadat and Chen, Junhua and Shi, Tie and Zhang, Yongxiang and Zhou, Xuesong}, }