TY - GEN AU - Yongping, Z. TI - Advers effects of insufficient or inaccurate hydrological information T2 - Tecnhical reports to the Commission for Hydrology VL - 29 PY - 1989/// CY - Geneva PB - WMO KW - HIDROMETEOROLOGIA KW - INMG KW - 551.5 KW - med KW - fre ER -