S. K. Bhakat, P. Das. (ε ɛ v q)-fuzzy subgroup. Fuzzy Sets and Systems, 80(3):359-368, 1996. [doi]
@article{BhakatD96a, title = {(ε ɛ v q)-fuzzy subgroup}, author = {S. K. Bhakat and P. Das}, year = {1996}, doi = {10.1016/0165-0114(95)00157-3}, url = {https://doi.org/10.1016/0165-0114(95)00157-3}, researchr = {https://researchr.org/publication/BhakatD96a}, cites = {0}, citedby = {0}, journal = {Fuzzy Sets and Systems}, volume = {80}, number = {3}, pages = {359-368}, }