diff --git a/Stackage-LTS-Releases.md b/Stackage-LTS-Releases.md
index 7388f01..febb0d4 100644
--- a/Stackage-LTS-Releases.md
+++ b/Stackage-LTS-Releases.md
@@ -12,4 +12,6 @@
 |[9](https://www.stackage.org/lts-9)|2017-07-26| "    | 9.21 |2017-12-28| 5.1 |
 |[10](https://www.stackage.org/lts-10)|2017-12-19|8.2.2 | 10.10|2018-03-17| 2.9 |
 |[11](https://www.stackage.org/lts-11)|2018-03-12| "    | 11.17?|2018-07-07| 3.8 |
-|[12](https://www.stackage.org/lts-12)|2018-07-09|8.4.3 |      |          |     |
\ No newline at end of file
+|[12](https://www.stackage.org/lts-12)|2018-07-09|8.4.3 |      |          |     |
+
+([Reference spreadsheet](https://docs.google.com/spreadsheets/d/1aAEt6y9wEZNn1Ks0tz3Q-ho_isiKP5qe1flEIn7MKNc))
\ No newline at end of file