Svetlana V. Asmuss, Alexander P. Sostak. Extremal problems of approximation theory in fuzzy context. Fuzzy Sets and Systems, 105(2):249-257, 1999. [doi]
@article{AsmussS99, title = {Extremal problems of approximation theory in fuzzy context}, author = {Svetlana V. Asmuss and Alexander P. Sostak}, year = {1999}, doi = {10.1016/S0165-0114(98)00324-8}, url = {http://dx.doi.org/10.1016/S0165-0114(98)00324-8}, researchr = {https://researchr.org/publication/AsmussS99}, cites = {0}, citedby = {0}, journal = {Fuzzy Sets and Systems}, volume = {105}, number = {2}, pages = {249-257}, }