Update README.md

README.md

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 ## Dataset Description
 
-- **Homepage:** [CASIA](http:///)
-- **Source:** [IEHHR](https://rrc.cvc.uab.es/?ch=10&com=evaluation&task=1)
-- **Paper:** [The ESPOSALLES database: An ancient marriage license corpus for off-line handwriting recognition](https://doi.org/10.1016/j.patcog.2012.11.024)
+- **Homepage:** [CASIA](http://www.nlpr.ia.ac.cn/databases/handwriting/Download.html)
+- **Paper:** [Online and offline handwritten Chinese character recognition: Benchmarking on new databases](https://www.sciencedirect.com/science/article/abs/pii/S0031320312002919)
 - **Point of Contact:** [TEKLIA](https://teklia.com)
 
 ## Dataset Summary
 
-The Marriage Licenses ground-truth is compiled from the Marriage Licenses Books conserved at the Archives of the Cathedral of Barcelona.
+The offline Chinese handwriting database (CASIA-HWDB) was built by the National Laboratory of Pattern Recognition (NLPR), Institute of Automation of Chinese Academy of Sciences (CASIA). 
+The handwritten samples were produced by 1,020 writers using Anoto pen on papers, such that both online and offline data were obtained.
 
 ### Languages