@article{AFM_1972_501-520_a19,
     author = {Menahem Schiffer and Olli Tammi},
     title = {A {Green's} inequality for the power matrix},
     journal = {Annales Fennici Mathematici},
     publisher = {mathdoc},
     volume = {501-520},
     year = {1972},
     doi = {10.5186/aasfm.1972.501},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.5186/aasfm.1972.501/}
}