Precipitation deficiencies and excesses during the growing season of sugar beet in the Lublin voivodeship area (1971-2015) [elektronický zdroj] / Barbara Skowera ... [et al.] .
In: Enviro Nitra 2017 / Enviro Nitra [1 CD-ROM (48 s., 3,1 AH)]. -- Nitra : Slovak University of Agriculture, 2018. -- ISBN 978-80-552-1800-7. -- S. 14, CD-ROM
http://www.slpk.sk/eldo/2018/dl/9788055218007.pdf .