Džamonja, Mirna and Shelah, Saharon (1999) Similar but not the same: various versions of the club principle do not coincide. Journal of Symbolic Logic, 64 (1). pp. 180-198. ISSN 1943-5886
Džamonja, Mirna and Shelah, Saharon (1999) The club principle does not imply the existence of a Suslin tree. Israel Journal of Mathematics, 113. pp. 163-204.