@article{MASLO_1985__35_1_a0,
     author = {Kulich, Ivan},
     title = {Topology of the space of all $2$-dimensional {Lie} subalgebras of the {Lie} algebra ${\rm gl}(2;{\bf R})$},
     journal = {Mathematica slovaca},
     pages = {3--7},
     publisher = {mathdoc},
     volume = {35},
     number = {1},
     year = {1985},
     mrnumber = {783956},
     zbl = {0583.17014},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/MASLO_1985__35_1_a0/}
}