Fritz BUKOFZER was buried in the Jewish cemetery in Lucerne (Switzerland) between January and April 1958. 
Maybe the Jewish Community in Lucerne can provide you with the exact date and has further information.

http://jgluzern.ch/de/contact-de/

Secretary: Michelle Shitrit / michelle@... / Adresse: JGL. Lindenhaustrasse 13, Postfach 6000, Luzern 2 / Te. +41413109815

Daniel Teichman, Zurich, Switzerland