These infos about the CIABG are just what I'm looking for.
About the Lieutenant SPANIEL, he was the officer commanding the "Groupe d'Observation" of the "3ème Batterie de Tir / 3ème Régiment d'Artillerie Coloniale / 2ème Division Blindée" (there was no 2eDFL in the Frech Army as you quoted). He was killed in action in Alsace on 30.11.44 and the replacement M4A1 75mm OP from this 3ème Batterie was named after him.
If you don't have a link :http://www.chars-francais.net/new/index.php?option=com_content&task=view&id=948
I don't know of books/articles dealing with the Czechs in the French Army during WW2.
Thanks for all,