diff --git a/journal/Readme.md b/journal/Readme.md
index 8a1037f70005538ee890c18b1bb73dd81cf5b8ac..4237a1b30d62c9ff693b21232c49238bf78f5fb1 100644
--- a/journal/Readme.md
+++ b/journal/Readme.md
@@ -40,4 +40,10 @@ On data publication (=transparency):
 
 1. calculation errors: transparency leads to better cross-checking = help from other researchers.
 2. publicly available data and methods' decriptions lead to more quotation and popularity within the scientific community (respected intellectual property).
-3. sensitive data should be respected (ethical dimension): encryption with limited access.
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+3. sensitive data should be respected (ethical dimension): encryption with limited access.
+
+A computational document:
+
+- Jupyter notebook: R, python, Ruby (output with Markdown, not flexible, but configurable).
+- Rstudio: R, python (output with Markdown, not flexible, but configurable).
+- Org mode: any language (output with Org, very flexible with native LaTeX).
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