@article{10_21136_AM_1985_104174,
     author = {K\v{r}iv\'anek, Mirko},
     title = {A note on the computational complexity of hierarchical overlapping clustering},
     journal = {Applications of Mathematics},
     pages = {453--460},
     publisher = {mathdoc},
     volume = {30},
     number = {6},
     year = {1985},
     doi = {10.21136/AM.1985.104174},
     mrnumber = {0813533},
     zbl = {0581.62052},
     language = {en},
     url = {https://geodesic-test.mathdoc.fr/articles/10.21136/AM.1985.104174/}
}