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README.md

 # Transformer-XL: Attentive Language Models Beyond a Fixed-Length Context
 
 This repository contains the code in both **PyTorch** and **TensorFlow** for our paper
->[Transformer-XL: Attentive Language Models Beyond a Fixed-Length Context]()
+>[Transformer-XL: Attentive Language Models Beyond a Fixed-Length Context](http://arxiv.org/abs/1901.02860)
 
 >Zihang Dai\*, Zhilin Yang\*, Yiming Yang, William W. Cohen, Jaime Carbonell, Quoc V. Le, Ruslan Salakhutdinov (*: equal contribution)