Geografi︠i︡a transporta - Kazanskiĭ, Nikolaĭ Nikolaevich; Nikolʹskiĭ, I. V. (Igorʹ Vladimirovich); Parkhomenko, I. I. (I︠i︡a Ivanovna) (Itogi nauki i tekhniki. Geografi︠i︡a SSSR, 1973)