Wojtal, A.Z. (2009). Nupela marvanii sp. nov., and N. lapidosa (Krasske) Lange-Bertalot in Poland with notes on the distribution and ecology of the genus Nupela (Bacillariophyta). Fottea. 9(2): 233-242.
Nupela marvanii sp. nov., and N. lapidosa (Krasske) Lange-Bertalot in Poland with notes on the distribution and ecology of the genus Nupela (Bacillariophyta)