1055. Rubicon / Periodical organ of the club "Democratization of trade unions". Leningrad. No. 6, 8-9, 12. 1989 - 1991

1. Rubicon / Periodical organ of the club "Democratization of trade unions". Leningrad. No. 6. February 1989. Brochure. Rotaprint (?). 48 p.

2. Rubicon / Periodical organ of the club "Democratization of trade unions". Leningrad. No. 8-9. June - July 1989. Brochure. Rotaprint (?). 48 p.

3. Rubicon / Periodical organ of the club "Democratization of trade unions". Petrograd [sic]. No. 12. October 1991. Brochure. Rotaprint (?). 47 p.