Complex sentence: It is published roughly once every two years, and the contents focus on speeches and resolutions of the party's biannual conference, and archival documents by Bolshevik and Castroist communists.
Split into simpler sentences: It is published roughly once every two years. The contents focus on speeches and resolutions of the party's biannual conference, and archival documents by Bolshevik and Castroist communists.