@article{10_4064_ap_27_1_105_119,
     author = {S. W\k{e}grzynowski},
     title = {Scalar and density concomitants of tensor with the valence (1, 2) in a 2-dimensional space},
     journal = {Annales Polonici Mathematici},
     pages = {105--119},
     publisher = {mathdoc},
     volume = {27},
     number = {1},
     year = {1972},
     doi = {10.4064/ap-27-1-105-119},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/ap-27-1-105-119/}
}