Sitnik, T. G. (May 2003). "The Line-of-Sight Velocities of OB Associations and Molecular Clouds in a Wide Solar Neighborhood: The Streaming Motions of Stars and Gas in the Perseus Arm". Astronomy Letters. 29 (5): 311–320. Bibcode:2003AstL...29..311S. doi:10.1134/1.1573280. S2CID121168925.
Sitnik, T. G. (May 2003). "The Line-of-Sight Velocities of OB Associations and Molecular Clouds in a Wide Solar Neighborhood: The Streaming Motions of Stars and Gas in the Perseus Arm". Astronomy Letters. 29 (5): 311–320. Bibcode:2003AstL...29..311S. doi:10.1134/1.1573280. S2CID121168925.
Sitnik, T. G. (May 2003). "The Line-of-Sight Velocities of OB Associations and Molecular Clouds in a Wide Solar Neighborhood: The Streaming Motions of Stars and Gas in the Perseus Arm". Astronomy Letters. 29 (5): 311–320. Bibcode:2003AstL...29..311S. doi:10.1134/1.1573280. S2CID121168925.