Experimental light-emitting diode illumination in the excursion route of Shulgan-Tash cave (South Urals, Bashkortostan Republic, Russia)

Abdullin Sh.R., Gainutdinov I.A.

В журнале Cave and Karst Science

Год: 2015 Том: 42 Номер: 1 Страницы: 13-16