@article{10_4064_am_16_4_671_679,
     author = {M. Karo\'nski and Z. Palka},
     title = {Algorithm 69. {Two} distances between hypergraphs},
     journal = {Applicationes Mathematicae},
     pages = {671--679},
     publisher = {mathdoc},
     volume = {16},
     number = {4},
     year = {1977},
     doi = {10.4064/am-16-4-671-679},
     zbl = {0485.05050},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/am-16-4-671-679/}
}