LitterBox: A Linter for Scratch Programs. - Gordon Fraser 001; Ute Heuer; Nina Körber; Florian Obermüller; Ewald Wasmeier (ICSE (SEET), 2021)

Effects of Hints on Debugging Scratch Programs: An Empirical Study with Primary School Teachers in Training. - Luisa Greifenstein; Florian Obermüller; Ewald Wasmeier; Ute Heuer; Gordon Fraser 001 (WiPSCE, 2021)