TY - GEN AU - Marcelle, R TI - Environmental biological control of photosynthesis: proceedings of a conference held at the ' Limburgs Universitair Centrum' Belgaum SN - 90-6193-179-7 U1 - 581.133 42 MAR CY - The Hauge, Dr W Junk b v Publishers KW - Physiology/ metabolism ER -