Ker-I Ko. Some Negative Results on the Computational Complexity of Total Variation and Differentiation. Inf. Comput., 53(1/2):21-31, April/May 1982.
@article{Ko82:1, title = {Some Negative Results on the Computational Complexity of Total Variation and Differentiation}, author = {Ker-I Ko}, year = {1982}, month = {April/May}, researchr = {https://researchr.org/publication/Ko82%3A1}, cites = {0}, citedby = {0}, journal = {Inf. Comput.}, volume = {53}, number = {1/2}, pages = {21-31}, }