@article{TM_1995_209_a6,
     author = {E. I. Korkina},
     title = {Two-dimensional continued fractions. {The} simplest examples},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {143--166},
     publisher = {mathdoc},
     volume = {209},
     year = {1995},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TM_1995_209_a6/}
}