update references

1 files changed, 9 insertions, 0 deletions

diff --git a/ref.bib b/ref.bib
index d2e8530..bcc6cf7 100644
--- a/ref.bib
+++ b/ref.bib
@@ -608,6 +608,15 @@
   urldate =      "2024-04-16",
 }
 
+@Misc{Jmarchn_2017,
+  author =       "Jmarchn",
+  title =        "Waste hierarchy rect",
+  year =         "2017",
+  note =         "[Online; accessed April 27, 2013]",
+  URL =          "https://en.wikipedia.org/wiki/File:Waste_hierarchy_rect-en.svg",
+  urldate =      "2024-05-03",
+}
+
 @Book{Winner_2020,
   title =        "The Whale and the Reactor",
   subtitle =     "A Search for Limits in an Age of High Technology",