From 8cc40f152c49a8fe039e78bb6355fb077b932117 Mon Sep 17 00:00:00 2001 From: tim30b Date: Fri, 30 Jul 2021 10:57:58 +0200 Subject: add crystal video source --- buch/papers/punktgruppen/references.bib | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/buch/papers/punktgruppen/references.bib b/buch/papers/punktgruppen/references.bib index a29640c..b669036 100644 --- a/buch/papers/punktgruppen/references.bib +++ b/buch/papers/punktgruppen/references.bib @@ -42,3 +42,12 @@ url = {http://archive.today/2021.07.22-083802/http://xrayweb.chem.ou.edu/notes/symmetry.html}, urldate = {2021-07-22}, } + +@online{punktgruppen:restriction, + title = {Structure of Materials}, + author = {Silvija Gradecak-Garaj}, + year = {2020}, + month = {4}, + day = {9}, + url = {https://www.youtube.com/watch?v=Ia2eHF1ZKoI}, + urldate = {2021-07-30}, \ No newline at end of file -- cgit v1.2.1