Boyadjiev, S., и др. Gold - geohimik software package. София: 2002 p. 9-12,.
Boyadjiev, S., и др. Gold - geohimik software package. София: 2002 p. 9-12,.
Boyadjiev, S., и др. (2002) Gold - geohimik software package, София: p. 9-12,.
Boyadjiev, S., & и др. (2002). Gold - geohimik software package. Complex processing of geological, geochemical and environmental geochemical data. София: p. 9-12.
Boyadjiev S, и Д. Gold - geohimik software package: Complex processing of geological, geochemical and environmental geochemical data. София: 2002. p. p. 9-12.
