Oil Shale
A Scientific-Technical Journal

2004, Vol. 21, No. 4

1.	Editor's Page. A. Raukas. Opening a new decade	1-2
*
2.	A. Luud, M. Pensa. Alternatives of reforesting oil shale opencasts in Estonia	3-11
3.	T. Kaljuvee, R. Kuusik, M. Radin, V. Bender. Carbon dioxide binding in the heterogeneous systems formed at combustion of oil shale. 4. Reactivity of ashes towards acid gases in the system fly ash-flue gases	13-26
4.	R. Kuusik, A. Paat, H. Veskimäe, M. Uibu. Transformations in oil shale ash at wet deposition	27-42
5.	A. Vares, K. Lõhmus, M. Truu, J. Truu, H. Tullus, A. Kanal. Productivity of black alder (Alnus glutinosa (L.) Gaertn.) plantations on reclaimed oil-shale mining detritus and mineral soils in relation to rhizosphere conditions	43-58
6.	H. Raave, P. Kuldkepp, E. Leedu, A. Merivee. Recultivation substance and composts produced from semi-coke: The effect on soil characteristics, the yield of field crops and the environment	59-73
7.	L. Tiikma, H. Luik, N. Pryadka. Co-pyrolysis of Estonian shales with low-density polyethylene	75-85
	*historica*
8.	Estonian Oil Shale: Science and Industry through Ages. The exhibition in Tallinn 20.01-01.03.2004	87-90
	People
9.	Dr. G. P. Stelmakh	91
	*in memoriam*
10.	Clemensas A. A. Yorudas (1938-2003)	93

	Mart Marguste (1928-2004)	93