Irina Perfilieva, Siegfried Gottwald. Solvability and approximate solvability of fuzzy relation equations. Int. J. General Systems, 32(4):361-372, 2003. [doi]
@article{PerfilievaG03, title = {Solvability and approximate solvability of fuzzy relation equations}, author = {Irina Perfilieva and Siegfried Gottwald}, year = {2003}, doi = {10.1080/0308107031000135035}, url = {http://dx.doi.org/10.1080/0308107031000135035}, researchr = {https://researchr.org/publication/PerfilievaG03}, cites = {0}, citedby = {0}, journal = {Int. J. General Systems}, volume = {32}, number = {4}, pages = {361-372}, }