H. Babaie Asil, R. Kazemi Matin, M. Khounsiavash, and Z. Moghadas, “A modified semi-oriented radial measure to deal with negative and stochastic data: an application in banking industry”, Math. Sci., vol. 16, no. 3 (September 2022), Jun. 2021, doi: 10.1007/s40096-021-00416-2.