@article{BAG_2001__42_1_225640,
     author = {Risteski, Ice B. and Trencevski, Kostadin G.},
     title = {Principal values and principal subspaces of two subspaces of vector spaces with inner product.},
     journal = {Beitr\"age zur Algebra und Geometrie},
     pages = {289},
     publisher = {mathdoc},
     volume = {42},
     number = {1},
     year = {2001},
     zbl = {0971.15001},
     language = {en},
     url = {https://geodesic-test.mathdoc.fr/item/BAG_2001__42_1_225640/}
}