Hidrológiai Közlöny 1990 (70. évfolyam)

2. szám - Refuznyiki: - Maróthy László lemondását indokló nyilatkozat - Gaál Ferenc: A műszakiakat, mérnököket is meg kellene kérdezni

Ara: 50,—Ft CONTENTS 65 Benedek, P.: Biotechnology in environmental protection 72 Petz, R.—Sajgó, Zs.—Scheuer, Gy.: Hydrogeology and water quaiity protection at the Lőtér well field of the Szekszárd waterworks 83 Kiss, J.: New areas of technical development in water- and wastewater treatment 94 Sárváry, I.—Csepregi, A.—Izápy, G.: Proposal for augmenting the discharge of Lake Hévíz by karstwater recharging 101 Németh, J.—Koncsos, L.: Methods of determining the planktonic population size. I. Estimation of population density from the binary data of different sample volumes 108 Varga, Cs.: Asbestos fibres in drinking water: electron microscopestudies 114 Farkas, A., (Mrs. Ganyecz): The ANAMET- and BIOMET methods of converting liquid and solid wastes into methane gas. II. The BIOMET method. 118 Discussion — Zsuffa, I.: In minority 124 News 125 Refuzniki: Sálon des Refusées ofthe Gabcikovo—Nagymaros Debate