1. A. P. Birkis, A. V. Kanaev, and A. I. Khubl’dikov, “Stratigraphic location, geology, and petrography of Sambian complex of Post-Silurian reservoir intrusions of diabases of Central part of Baltic syneclise,” in Paleontology and Stratigraphy of Phanerozoic Latvia and Baltic Sea (Zinatne, Riga, 1992), pp. 145–158.
2. A. A. Geodekyan, et al., Geological Structure and Prospects of Oil-and-Gas Content in the Central Baltic Region (Nauka, Moscow, 1976) [in Russian].
3. A. A. Grigyalis, et al., Geology and Geomorphology of the Baltic Sea (Nedra, Leningrad, 1992) [in Russian].
4. L. P. Zonenshain, M. I. Kuz’min, and L. M. Natapov, Tectonics of Lithosphere Platforms of the USSR (Nedra, Moscow, 1990), Book 1.
5. The Maps of Geological Content of the Baltic Sea Bottom, Scale 1:500000 (VSEGEI, Leningrad, 1990) [in Russian].