@techreport{KoutschanMoserPonomarchukSchicho23,
 author = {Christoph Koutschan and Bernhard Moser and Anton Ponomarchuk and Josef Schicho},
 title = {Representing piecewise linear functions by functions with small arity},
 institution = {RICAM Reports Series},
 year = {2023},
 number = {2023-07},
 note = {Submitted for publication},
}