EHLEROVÁ, S., JUNGWIERT, B., PALOUŠ, J. GS64-01-97: expanding supershell in the Milky Way. In: BLITZ, L., TEUBEN, P., eds. Unsolved problems of the Milky Way. Dordrecht: Kluwer, 1996, s. 621-622. ISBN 0-7923-4039-6.