@incollection{JEDP_2010____A4_0,
     author = {Bernardi, Enrico and Bove, Antonio and Petkov, Vesselin},
     title = {Cauchy problem for hyperbolic operators with triple characteristics of variable multiplicity},
     booktitle = {},
     series = {Journ\'ees \'equations aux d\'eriv\'ees partielles},
     eid = {4},
     pages = {1--13},
     publisher = {Groupement de recherche 2434 du CNRS},
     year = {2010},
     doi = {10.5802/jedp.61},
     language = {en},
     url = {http://www.numdam.org/articles/10.5802/jedp.61/}
}