@article{article, title = {{The extension group of the simple modules over the first Weyl algebra}}, url = {{}}, year = {{2000}}, month = {{1}}, author = {{Bavula VV}}, doi = {{10.1112/S0024609399006608}}, volume = {{32}}, journal = {{Bulletin of the London Mathematical Society}}, issue = {{2}}, pages = {{182-190}}, note = {{Accessed on 2025/08/26}}}