diff --git a/amu-literature.bib b/amu-literature.bib
index 2902564dbb335cb764542092dd7f856e9e31b7f6..aa57afb574b7faa9f84b12f9087c3fd4f652da94 100644
--- a/amu-literature.bib
+++ b/amu-literature.bib
@@ -1338,6 +1338,17 @@
   file         = {:Liu2009 - Exploration of the Ltag Spinal Formalism and Treebank for Semantic Role Labeling.PDF:PDF},
 }
 
+@Article{shen2008ltag,
+  author    = {Shen, Libin and Champollion, Lucas and Joshi, Aravind K},
+  journal   = {Language Resources and Evaluation},
+  title     = {Ltag-spinal and the treebank: A new resource for incremental, dependency and semantic parsing},
+  year      = {2008},
+  pages     = {1--19},
+  volume    = {42},
+  file      = {:ltag-spinal.pdf:PDF},
+  publisher = {Springer},
+}
+
 @Comment{jabref-meta: databaseType:bibtex;}
 
 @Comment{jabref-meta: grouping:
diff --git a/ltag-spinal.pdf b/ltag-spinal.pdf
new file mode 100644
index 0000000000000000000000000000000000000000..34eac53125b11a602ba1a3978850c8a5a3c95a89
Binary files /dev/null and b/ltag-spinal.pdf differ