Paper link added
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# Avalanche: an End-to-End Library for Continual Learning
-**[Avalanche Website](https://avalanche.continualai.org)** | **[Getting Started](https://avalanche.continualai.org/getting-started)** | **[Examples](https://avalanche.continualai.org/examples)** | **[Tutorial](https://avalanche.continualai.org/from-zero-to-hero-tutorial)** | **[API Doc](https://avalanche-api.continualai.org)** | **[Twitter](https://twitter.com/AvalancheLib)**
+**[Avalanche Website](https://avalanche.continualai.org)** | **[Getting Started](https://avalanche.continualai.org/getting-started)** | **[Examples](https://avalanche.continualai.org/examples)** | **[Tutorial](https://avalanche.continualai.org/from-zero-to-hero-tutorial)** | **[API Doc](https://avalanche-api.continualai.org)** | **[Paper](https://arxiv.org/abs/2104.00405)** | **[Twitter](https://twitter.com/AvalancheLib)**
[![unit test](https://github.com/ContinualAI/avalanche/actions/workflows/unit-test.yml/badge.svg)](https://github.com/ContinualAI/avalanche/actions/workflows/unit-test.yml)
[![syntax checking](https://github.com/ContinualAI/avalanche/actions/workflows/syntax.yml/badge.svg)](https://github.com/ContinualAI/avalanche/actions/workflows/syntax.yml)
