diff --git a/docs/useful.md b/docs/useful.md
index 899879138edc4c72d9f22c655b5728d5eb47f56d..e82c15ea667d156998e6f96004e999f26ad68541 100644
--- a/docs/useful.md
+++ b/docs/useful.md
@@ -12,4 +12,9 @@ https://karpathy.github.io/2019/04/25/recipe/
 https://github.com/LeanManager/NLP-PyTorch
 https://github.com/pranjal52/text_generators
 https://github.com/pranjal52/text_generators/blob/master/a_gigantic_model.ipynb
-https://blog.floydhub.com/long-short-term-memory-from-zero-to-hero-with-pytorch/
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+https://blog.floydhub.com/long-short-term-memory-from-zero-to-hero-with-pytorch/
+
+
+https://discuss.pytorch.org/t/lstm-text-generator-repeats-same-words-over-and-over/43652/7
+https://karpathy.github.io/2015/05/21/rnn-effectiveness/
+https://mlexplained.com/2019/02/15/building-an-lstm-from-scratch-in-pytorch-lstms-in-depth-part-1/
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