Authors: Witjaksono, G Botez, D

Citation: G. Witjaksono et D. Botez, Surface-emitting, single-lobe operation from second-order distributed-reflector lasers with central grating phaseshift, APPL PHYS L, 78(26), 2001, pp. 4088-4090

Authors: Matsumura, S Witjaksono, G

Citation: S. Matsumura et G. Witjaksono, Tillage method and soil fertilization effects on crop yield and nitrate leaching, ACTA HORT, (506), 1999, pp. 193-198

Authors: Matsumura, S Witjaksono, G

Citation: S. Matsumura et G. Witjaksono, Modification of the Cataldo method for the determination of nitrate in soil extracts by potassium chloride, SOIL SCI PL, 45(1), 1999, pp. 231-235

Authors: Lopez, J Witjaksono, G Botez, D

Citation: J. Lopez et al., Single-mode, single-lobe operation of surface-emitting, second-order distributed feedback lasers, APPL PHYS L, 75(7), 1999, pp. 885-887