@misc {IOPORT.70020933,
    author       = {Yan, Nan and Xue, Steve An and Man, Mok Ka},
    title        = {Vocal tract dimensional characteristics of professional female singers with different types of singing voices},
    howpublished = {BMEI, 1549-1552 (2011).},
    year         = {2011},
    doi          = {10.1109/BMEI.2011.6098560},
    identifier   = {70020933},
}