diff --git a/.gitignore b/.gitignore
index 67f134e..49cb4f0 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,12 +3,15 @@
 test-pascal.ini
 tmp*.json
 Tests.md
-data/corpus-simple.json
-data/corpus-simple-etab.json
-data/corpus-simple-instituts.json
-data/corpus-simple-label-pascal.json
-data/corpus-simple-pascal.json
-data/corpus-simple-cnrs.json
+data/*corpus.json
+data/*corpus-simple.json
+data/*corpus-simple-etab.json
+data/*corpus-simple-instituts.json
+data/*corpus-simple-label-pascal.json
+data/*corpus-simple-pascal.json
+data/*corpus-simple-cnrs.json
+data/*corpus-simple-rnsr.json
+data/*corpus-simple-teeft-en.json
 data/*.gz
 corpus_WoS_vol1.json
 corpus-test.json
diff --git a/Makefile b/Makefile
index 9811ea6..aea3f4a 100644
--- a/Makefile
+++ b/Makefile
@@ -3,29 +3,29 @@
 # See https://tech.davis-hansson.com/p/make/#change-some-make-defaults
 .DELETE_ON_ERROR:
 
-data/corpus-simple-cnrs.json: data/corpus-simple-label-pascal.json
+data/09-corpus-simple-cnrs.json: data/08-corpus-simple-label-pascal.json
 	npx ezs detect-cnrs.ini < $< > $@
 
-data/corpus-simple-label-pascal.json: data/corpus-simple-pascal.json
+data/08-corpus-simple-label-pascal.json: data/07-corpus-simple-pascal.json
 	npx ezs extract-pascal-label.ini < $< > $@
 
-data/corpus-simple-pascal.json: data/corpus-simple-teeft-en.json
+data/07-corpus-simple-pascal.json: data/06-corpus-simple-teeft-en.json
 	npx ezs enrich-pascal.ini < $< > $@
 
-data/corpus-simple-teeft-en.json: data/corpus-simple-instituts.json
+data/06-corpus-simple-teeft-en.json: data/05-corpus-simple-instituts.json
 	npx ezs enrich-teeft-en.ini < $< > $@
 
-data/corpus-simple-instituts.json: data/corpus-simple-etab.json
+data/05-corpus-simple-instituts.json: data/04-corpus-simple-etab.json
 	npx ezs enrich-institutes.ini < $< > $@
 
-data/corpus-simple-etab.json: data/corpus-simple-rnsr.json
+data/04-corpus-simple-etab.json: data/03-corpus-simple-rnsr.json
 	npx ezs enrich-etab.ini < $< > $@
 
-data/corpus-simple-rnsr.json: data/corpus-simple.json
+data/03-corpus-simple-rnsr.json: data/02-corpus-simple.json
 	npx ezs enrich-rnsr.ini < $< > $@
 
-data/corpus-simple.json: data/corpus.json
+data/02-corpus-simple.json: data/01-corpus.json
 	npx ezs extract-fields.ini < $< > $@
 
-data/corpus.json: dois.txt
+data/01-corpus.json: dois.txt
 	npx ezs harvest-from-doi.ini < $< > $@