Update README.md

README.md

@@ -4,9 +4,19 @@ language: et
 
 # Estonian Question Answering dataset
 
-* Dataset for extractive question answering in Estonian. It based on Wikipedia articles, pre-filtered via PageRank.
+* Dataset for extractive question answering in Estonian. It is based on Wikipedia articles, pre-filtered via PageRank. Annotation was done by one person.
 * Train set includes 776 context-question-answer triplets. There are several possible answers per question, each in a separate triplet. Number of different questions is 512.
 * Test set includes 603 samples. Each sample contains one or more golden answers. Altogether there are 892 golden ansewrs.
 
 ### Change log
-Test set v1.1 adds some more golden answers.
+Test set v1.1 adds some more golden answers.
+
+### Reference
+If you use this dataset for research, please cite the following paper:
+
+**Bibtex**: @mastersthesis{mastersthesis,
+  author       = {Anu Käver}, 
+  title        = {Extractive Question Answering for Estonian Language},
+  school       = {TalTech},
+  year         = 2021
+}