Update

bibliobase.bib

@@ -64826,3 +64826,22 @@ author = {Leslie London},
   DATE_ADDED =   {Sat Jan 27 06:20:40 2018},
 }
 
+@article{sen1976poverty,
+  title={Poverty: an ordinal approach to measurement},
+  author={Sen, Amartya},
+  journal={Econometrica: Journal of the Econometric Society},
+  pages={219--231},
+  year={1976},
+  publisher={JSTOR}
+}
+
+
+@article{sen76,
+  title =        {Poverty: An Ordinal Approach To Measurement},
+  author =       {Sen, Amartya},
+  journal =      {Econometrica},
+  pages =        {219--231},
+  year =         {1976},
+}
+
+