@incollection{JEDP_2000____A16_0,
     author = {Sj\"ostrand, Johannes},
     title = {Asymptotic distribution of eigenfrequencies for damped wave equations},
     booktitle = {},
     series = {Journ\'ees \'equations aux d\'eriv\'ees partielles},
     eid = {16},
     pages = {1--8},
     publisher = {Universit\'e de Nantes},
     year = {2000},
     language = {en},
     url = {http://archive.numdam.org/item/JEDP_2000____A16_0/}
}