'Cathy et Pif-Paf' (Lisette).
M. Gellens was a cartoonist and comic artist for Lisette magazine in the 1950s. He illustrated comic series like 'Cathy et Pif-Paf', serialized on the magazine's back cover, and the one-pagers 'Nouky'. He was also present in the Fleurus magazine Ames Vaillantes with 'Chouquette'.
'Chouquette Aime La Charcuterie' (Ames Vaillantes #22, 1 June 1958).
'Cathy et Pif-Paf'.