@article{EMJ_2012_3_1_a5,
     author = {M. Lin and G. Sinnamon},
     title = {The generalized {Wielandt} inequality in inner product spaces},
     journal = {Eurasian mathematical journal},
     pages = {72--85},
     year = {2012},
     volume = {3},
     number = {1},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EMJ_2012_3_1_a5/}
}