Diatoms as indicators of environmental change in ancient Lake Ohrid during the last glacial-interglacial cycle (ca. 140 ka) / Andrzej Witkowski, Aleksandra Cvetkoska, Jane M. Reed, Levkov Zlatko.
    Königstein : A.R.G. Gantner Verlag K.G., 2012. - 224 s.
    ISBN 978-3-87429-428-7


diatoms
Lake Ohrid