@book{semenov1900b,
  address = {St. Petersburg},
  editor  = {Semenov, V. P.},
  key     = {Semenov (1900b)},
  series  = {Rossija. Polnoe geograficheskoe opisanie nashego otechestva. Nastol'naja i dorozhnaja kniga dlja russkih ljudej (Russia: Complete Geographic Description of Our Fatherland. Guide for the Russian People)},
  title   = {Sredneei Nizhnee Povolzh'e i Zavolzh'e (The Middle and Lower Volga and Trans-Volga Regions)},
  volume  = {6},
  year    = {1900}
}