• Mining block stability analysis for room-and-pillar mining with continuous miner in Estonian oil shale minesNikitin, OlegOil shale2003 / 4, p. 515-528 : ill https://www.researchgate.net/publication/297534647_Mining_block_stability_analysis_for_room-and-pillar_mining_with_continuous_miner_in_Estonian_oil_shale_mines https://artiklid.elnet.ee/record=b1014397*est
• Mining block stability analysis for room-and-pillar mining with continuous miner in Estonian oil shale minesNikitin, OlegAbstracts : Symposium on Oil Shale 2002, 18-21 November 2002, Tallinn, Estonia2002 / p. 32 https://www.ester.ee/record=b1703301*est