Dimitrijević, J. (1971): Newbould J.P.: Methods for estimating the primary production of forests. IBP Handbook No. 2 Blackwell Scientific publication, 1967, Oxford and Edinburg, 62 pp., 6 il., 7s, 6 d - Njubold J.P.: Metode za merenje primarne produkcije šuma.- Glasn. Inst. Bot. Bašte Univ. Beograd 6(1-4): 111-113.