A. Šlepetienė, I. Liaudanskienė, J. Šlepetys, V. Stukonis, and I. Jokubauskaitė, “Soil carbon, nitrogen and phosphorus distribution in grassland systems, important for landscape and environment”, JEELM, vol. 21, no. 4, pp. 263–272, Dec. 2013, doi: 10.3846/16486897.2013.830973.