@article {Zagorchev1995,
	title = {Pre-Paleogene alpine tectonics in southwestern Bulgaria},
	journal = {Geologica Balcanica},
	volume = {25},
	year = {1995},
	pages = {91{\textendash}112},
	keywords = {JS, TIP},
	author = {Zagorchev, I}
}
@article {Zagorchev2001,
	title = {Introduction to the geology of SW Bulgaria},
	journal = {Geologica Balcanica},
	volume = {31},
	year = {2001},
	pages = {3{\textendash}52},
	keywords = {JS, TIP},
	author = {Zagorchev, I}
}
@article {Dabowski2002,
	title = {Structure and alpine evolution of Bulgaria},
	journal = {Geologica Balcanica},
	volume = {32},
	year = {2002},
	pages = {9{\textendash}12},
	keywords = {JS, TIP},
	author = {Dabowski, C and Boyanov, I and Khrischev, K H and Nikolov, T and Sapunov, I and Yanev, Y and Zagorchev, I}
}
