no. 4
A note on minimum-dummy-activities PERT networks
RAIRO - Operations Research - Recherche Opérationnelle, Tome 18 (1984) no. 4, pp. 415-421. 
@article{RO_1984__18_4_415_0,
     author = {Mrozek, Marian},
     title = {A note on minimum-dummy-activities {PERT} networks},
     journal = {RAIRO - Operations Research - Recherche Op\'erationnelle},
     pages = {415--421},
     publisher = {EDP-Sciences},
     volume = {18},
     number = {4},
     year = {1984},
     mrnumber = {776773},
     zbl = {0551.90094},
     language = {en},
     url = {http://archive.numdam.org/item/RO_1984__18_4_415_0/}
}
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Mrozek, Marian. A note on minimum-dummy-activities PERT networks. RAIRO - Operations Research - Recherche Opérationnelle, Tome 18 (1984) no. 4, pp. 415-421. http://archive.numdam.org/item/RO_1984__18_4_415_0/

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