Title: Shupashkar raĭonĕnchi "Tăvan en" khaśat istoriĭĕ /
Authors: Nesterova, Ksenii͡a Sergeevna.
Publisher: I. N. Ulʹi͡anov i͡achĕllĕ Chăvash patshalăkh universitechĕ,
Year: 2011