diff --git a/Cell.bib b/Cell.bib
index aed737f..1efd950 100644
--- a/Cell.bib
+++ b/Cell.bib
@@ -39,8 +39,8 @@ @inproceedings{CELL-IEDM2013-Rashed
     title     = {Innovations in special constructs for standard cell libraries in sub 28nm technologies}, 
     author    = {Rashed, M. and Jain, N. and Kim, J. and Tarabbia, M. and Rahim, I and Ahmed, S. and Kim, J. and others},
     booktitle = iedm,
-    year      = {2013}, 
-    pages     = {9.7.1--9.7.4}, 
+    year      = {2013},
+    pages     = {9.7.1--9.7.4},
     abstract  = {MOL},
 }
 @inproceedings{CELL-CICC2014-Ryckaert,
@@ -82,6 +82,13 @@ @article{CELL-MEJO2016-Clark
     year      = {2016},
     publisher = {Elsevier}
 }
+@inproceedings{CELL-ICCAD2017-Xu,
+    title     = {Standard cell library design and optimization methodology for {ASAP7 PDK}},
+    author    = {Xu, Xiaoqing and Shah, Nishi and Evans, Andrew and Sinha, Saurabh and Cline, Brian and Yeric, Greg},
+    booktitle = iccad,
+    pages     = {999--1004},
+    year      = {2017},
+}
 % ==== multi-row height cells
 @misc{CELL-USP2005-Gheewala,
   title  = {Dual-height cell with variable width power rail architecture},