Energy and environmental indicators for Estonian energy sector
Roos, Inge
;
Soosaar, Sulev
Oil shale
2005
/
4S, p. 487-498 : ill
https://artiklid.elnet.ee/record=b2352657*est
Sissejuhatus keskkonnakeemiasse
Nei, Lembit
;
Koorits, Aksel
2005
https://www.ester.ee/record=b2074781*est