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 # CASCADE - CAncer Signaling CAusality DatabasE
 
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+[![DOI](https://zenodo.org/badge/DOI/10.5281/zenodo.4066665.svg)](https://doi.org/10.5281/zenodo.4066665)
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 This repository contains **manually curated causal interactions** to describe cancer signaling events and is compliant with the annotation standard established by the [SIGNOR database](http://signor.uniroma2.it/).
 
 ## Versions
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 The [cascade_to_sif.Rmd](https://github.com/druglogics/cascade/blob/master/cascade_to_sif.Rmd) R code can be used to convert the SIGNOR data (`.tsv`) to a topology (`.sif`) file.
 The example in the code re-creates the `cascade_2.0.sif` (CASCADE 2.0 version).
 
+## Citation Info
+
+Eirini Tsirvouli, Barbara Niederdorfer, John Zobolas, Touré Vasundra, Åsmund Flobak, & Martin Kuiper. (2020, October 5). CASCADE - CAncer Signaling CAusality DatabasE (Version 3.0). Zenodo. http://doi.org/10.5281/zenodo.4066665
+
 ## Contact
 
 - CASCADE 1.0: [asmund.flobak@ntnu.no](asmund.flobak@ntnu.no)