au.\*:("SCHALK, B")
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THE HORIZONTALLY PERFORATED SOIL SYSTEM: A NEW ROOT OBSERVATION METHODVAN DEN TWEEL PA; SCHALK B.1981; PLANT SOIL; ISSN 0032-079X; NLD; DA. 1981; VOL. 59; NO 1; PP. 163-165Article
Experimental determination of parameters for molecular continuum radiation of rare-earth iodides : Mercury-free discharges for lightningKÄNING, M; SCHALK, B; SCHNEIDENBACH, H et al.Journal of physics. D, Applied physics (Print). 2007, Vol 40, Num 13, pp 3815-3822, issn 0022-3727, 8 p.Article
Mercury-free high-intensity discharge with high luminous efficacy and good colour rendering index : Mercury-free discharges for lightningFRANKE, St; METHLING, R; HESS, H et al.Journal of physics. D, Applied physics (Print). 2007, Vol 40, Num 13, pp 3836-3841, issn 0022-3727, 6 p.Article