GLOBAL WARMING AND THE E.C. BUDGET . RECOMMENDATIONS TO THE EUROPEAN PARLIAMENT IN THE DEBATE ON THE 1992 BUDGET. Climate Action Network , Brussels , May 1991.

I. Bingman : ACIDIFICATION AND AIR POLLUTION . National Environmental Protection Board , Solna 1987.

WARM WORLD , COOL HEADS . The Economist . October 27 , 1990.

WORLD RESOURCES 1992-93 . A GUIDE TO THE GLOBAL ENVIRONMENT, Oxford University Press 1992.

THE YEARBOOK OF RENEWABLE ENERGIES 1992. EUROSOLAR Publication. Ponte Press Bochum 1992.

ENERGY 2000 A PLAN FOR ACTION FOR SUSTAINABLE DEVELOPMENT. Danish Ministry of Energy , Copenhagen April 1990.

ENERGY IN EUROPE . A VIEW TO THE FUTURE. Commission of the European Communities , Brussels September 1992 .

RENEWABLE ENERGY TECHNOLOGIES. RESEARCH, TECHNOLOGICAL DEVELOPMENT, ENTERPRISES 1992. Ministry of Energy . Danish Energy Agency , Copenhagen 1992.

M. Flood : ENERGY WITHOUT END . Friends of the Earth , 1986 .

ALTERNATIVE ENERGY SOURCEBOOK 1991 . Real Goods Trading Corp. Ukiah Ca. 1991.

ENERGIEBERICHT 1990 . Amt der Niederosterreichischen Landesregierung, Wien 1989.

Ch. Flavin and N. Lenssen : DESIGN A SUSTAINABLE ENERGY SYSTEM. STATE OF THE WORLD 1991. Worldwatch Institute. New York 1991.

SOLAR ARCHITECTURE IN EUROPE . DESIGN, PERFORMANCE AND EVALUATION. Commission of the European Communities , Brussels 1991 .

SOLARE AUSSICHTEN. Verkehrsclub Osterreich - VCO , Modling , Marz 1991.

ERNEUBARE ENERGIEN - FUR EINE SONNIGE ZUKUNFT ! Bund Argumente. Bund fur Umwelt und Naturschutz Deutschland e.V. , Bonn , Juni 1991.

D.O.Hall,F.R. Rosillo-Calle,R.H.Williams and J.Woods : BIOMASS FOR ENERGY : SUPPLY PROSPECTS . Renewables for Fuels and Electricity .Edited by T.J.Johansson, H. Kelly, A.K.N. Reddy and R.H.Williams. Island Press Washington, DC. , October 1992.

J.M.Ogden , J.Nitsch : SOLAR HYDROGEN . Renewables for Fuels and Electricity .Edited by T.J.Johansson, H. Kelly, A.K.N. Reddy and R.H.Williams. Island Press Washington, DC. , October 1992.

J.E.Cavanagh, J.H. Clark and R. Price : OCEAN ENERGY SYSTEMS Renewables for Fuels and Electricity .Edited by T.J.Johansson, H. Kelly, A.K.N. Reddy and R.H.Williams. Island Press Washington, DC. , October 1992.

G. Grassi : ELECTRICITY PRODUCTION FROM BIOMASS IN THE E.C. TECHNOLOGICAL OPTIONS AND ECONOMIC PERSECTIVES , Commission of the European Communities , Brussels , February 1992

G. Grassi : BIOMASS FOR ENERGY, INDUSTRY, RURAL DEVELOPMENT AND ENVIRONMENT , Commission of the European Communities , Brussels April 1991.

TOWARD ECOLOGICAL GUIDELINES FOR LARGE-SCALE BIOMASS ENERGY DEVELOPMENT. National Audubon Society. Princeton University, May 1991.

Nilson, Sallnas and Dulnker : FUTURE FOREST RESOURCES OF WESTERN AND EASTERN EUROPE , IASA 1992 .

FAO PRODUCTION YEARBOOK 1991 . United Nations, New York 1991.

ENERGY STATISTICS AND BALANCES OF NON-OECD COUNTRIES 1989-1990. ENERGY BALANCE SHEETS 1990. OECD , Paris 1992 .

D.O. Hall : BIOMASS ENERGY . Energy Policy Vol. 19, No.8, 1991.

G. Grassi, G. Trebbi and D.C. Pike : ELECTRICITY FROM BIOMASS . Commission of the European Communities , Brussels April 1992.

W.S. Charters : SOLAR ENERGY - CURRENT STATUS AND FUTURE PROSPECTS . Energy Policy . October 1991.

A LIVING ENVIRONMENT . MAIN PROPOSAL. The Swedish Goverment Bill 1990/91. Stockholm , February 1991.

P. Miller : OUR ELECTRIC FUTURE. A COMEBACK FOR NUCLEAR POWER ? National Geographic, August 1991 .

C. Pollock Shea : HARVESTING THE WIND, Worldwatch Institute , March/April 1988.

ENERGETICKA KONCEPCIA PRE SLOVENSKU REPUBLIKU DO ROKU 2005 . Ministerstvo Hospodarstva SR . Bratislava , januar 1992 .

NAVRH KONCEPCE STATNI ENERGETICKE POLITIKY . Federalni ministerstvo paliv a energetiky . Praha , maj 1990 .