Petrology and geochemistry of alkaline basalts and lamprophyres:implications for the chemical composition of the upper mantle beneath the eastern Rhodopes (Bulgaria)
P. Marchev et al., Petrology and geochemistry of alkaline basalts and lamprophyres:implications for the chemical composition of the upper mantle beneath the eastern Rhodopes (Bulgaria), Acta vulcanologica AV. Acta vulcanologica , 10(2), 1998, pp. 233-242