Rights and permissions
About this article
Cite this article
Sessions of the Seminar “Algebra i Logika”. Algebra and Logic 43, 70–72 (2004). https://doi.org/10.1023/B:ALLO.0000015132.41562.b0
Issue Date:
DOI: https://doi.org/10.1023/B:ALLO.0000015132.41562.b0