@article{MSH_1997__137__25_0,
     author = {Snijders, Tom A. B. and Spreen, Marinus},
     title = {Segmentation in personal networks},
     journal = {Math\'ematiques informatique et sciences humaines},
     pages = {25--36},
     publisher = {Ecole des hautes-\'etudes en sciences sociales},
     volume = {137},
     year = {1997},
     mrnumber = {1454784},
     zbl = {0885.92044},
     language = {en},
     url = {http://www.numdam.org/item/MSH_1997__137__25_0/}
}