21. Smuteční proslov pronesený J. Fischerem: Za Janem Sternem Creator: Fischer, Jan Format: bez média and svazek Type: model:article and TEXT Subject: fyzici, fyzika elementárních částic, physicists, and physics of elementary particles Language: Czech Rights: http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
22. Stoletý astronom Luboš Perek Creator: Wernerová, Markéta Format: bez média and svazek Type: model:article and TEXT Language: Czech Rights: http://creativecommons.org/publicdomain/mark/1.0/ and policy:public
23. Veletrh vodičů, světlovodů a trubek Format: bez média and svazek Type: model:article and TEXT Language: Czech Rights: http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public