wrote js and php implementations of qr code generators in stand der technik

dexes/literature.bib

@@ -140,3 +140,43 @@
   year         = {2023},
   note         = {Zugriff: Januar 2023}
 }
+
+@misc{bib:larsjung-jquery-qrcode,
+  author       = {Lars Jung},
+  howpublished = "\url{https://github.com/lrsjng/jquery-qrcode/blob/master/README.md}",
+  title        = {{jquery-qrcode readme.md}},
+  year         = {2020},
+  note         = {Zugriff: Januar 2023}
+}
+
+@misc{bib:larsjung-kjua,
+  author       = {Lars Jung},
+  howpublished = "\url{https://larsjung.de/kjua/}",
+  title        = {{kjua dynamically generated QR codes}},
+  year         = {2020},
+  note         = {Zugriff: Januar 2023}
+}
+
+@misc{bib:soldair-node-qrcode,
+  author       = {Ryan Day},
+  howpublished = "\url{https://github.com/soldair/node-qrcode}",
+  title        = {{QR code/2d barcode generator}},
+  year         = {2020},
+  note         = {Zugriff: Januar 2023}
+}
+
+@misc{bib:npmjs-soldair-node-qrcode,
+  author       = {{npm, inc}},
+  howpublished = "\url{https://www.npmjs.com/package/qrcode}",
+  title        = {{QR code/2d barcode generator}},
+  year         = {2020},
+  note         = {Zugriff: Januar 2023}
+}
+
+@misc{bib:chillerlan-php-qrcode,
+  author       = {Eugen Rochko},
+  howpublished = "\url{https://www.npmjs.com/package/qrcode}",
+  title        = {{QR code/2d barcode generator}},
+  year         = {2022},
+  note         = {Zugriff: Januar 2023}
+}