@article{10_1017_S0017089500000859,
     author = {Au-Yeung, Yik-Hoi},
     title = {A necessary and sufficient condition for simultaneous diagonalization of two hermitian matrices and its application},
     journal = {Glasgow mathematical journal},
     pages = {81--83},
     year = {1970},
     volume = {11},
     number = {1},
     doi = {10.1017/S0017089500000859},
     url = {http://geodesic.mathdoc.fr/articles/10.1017/S0017089500000859/}
}