Gondwana-derived units in Ograzhden and Belasitsa Mountains, Serbo-Macedonian Massif (SW Bulgaria): combined geochemical, petrological and U-Pb zircon-xenotime age constraints von Peytcheva, Irena, Macheva, Lubomira, von Quadt, Albrecht, Zidarov, Nikola

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Timing of Igralishte pluton in Ograzhden Mountain, SW Bulgaria: implications for the tectono-magmatic evolution of the region von Peytcheva, Irena, von Quadt, Albrecht, Tarassov, Michail, Zidarov, Nikola, Tarassova, Eugenia, Andreichev, Valentin

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Petrology, geochemistry and age dating of Skrut granitoids – new evidence for Early Triassic magmatism in Belasitsa Mountain (SW Bulgaria) von Zidarov, Nikola, Tarassova, Eugenia, Peytcheva, Irena, Albrecht, von Quadt, Andreichev, Valentin, Titorenkova, Rositsa

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Le Crétacé inférieur dans le Massif de lʼOuarsenis et les Monts de Tiaret (Algérie du Nord) von Tchoumatchenco, Platon, Nikolov, Todor, Kozhoukharov, Dimitar, Benev, Benyo, Gočev, Petar, Katzkov, Nikola, Khrischev, Khrischo, Moev, Michail, Nikolov, Zdravko, Slavov, Ivan, Stoïtchev, D., Tzankov, Tzanko, Zidarov, Nikola

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METHOD FOR SEPARATION IN THE EARTH'S WOMB OF OF FLUORITE RAW MATERIAL INDUSTRIAL BODIES FIT FOR THE PRODUCTION OF OPTICAL FLUORITE von ZIDAROV, NIKOLA G, ZIDAROVA, BOGDANA P

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CHAMBER FOR SAND CASTING MOULD von RUSEV,GEORGI N, ZIDAROV,DIMITR L, CHORBOV,ILIJA G, NIKOLOV,IVAN D, IGNATOV,NIKOLA S, PEJJCHEV,IVAN M

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MACHINE FOR CASTING WITH COUNTER- PRESSURE von ZIDAROV,DIMITR L, CHORBOV,ILIJA G, IVANOV,VALENTIN S, NIKOLOV,IVAN D, IGNATOV,NIKOLA S, PEJJCHEV,IVAN M

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DEVICE FOR CHARGING OF MELTING FURNACE von ZIDAROV,DIMITR L, CHORBOV,ILIJA G, RAJJKOV,KHRISTO I, NIKOLOV,IVAN D, IGNATOV,NIKOLA S, PEJJCHEV,IVAN M

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TWO- CHAMBER CASTING WHEEL von IGNATOV,NIKOLA S.,BG, SEMERDZHIEV,NIKOLAJJ L.,BG, PETKANCHIN,LJUBOMIR T.,BG, ZIDAROV,DIMIT'R L.,BG

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