@article{DAN_1992_327_3_a7,
     author = {Yu. V. Obnosov},
     title = {Solution of a problem of $\mathbf{R}$-linear conjugation for a regular triangular chess field},
     journal = {Doklady Akademii Nauk},
     pages = {326--330},
     publisher = {mathdoc},
     volume = {327},
     number = {3},
     year = {1992},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1992_327_3_a7/}
}