@techreport{ABV17,
 author = {Stefano Aguzzoli Simone Bova and Diego Valota},
 institution = {Algorithms and Complexity Group, TU Wien},
 number = {AC-TR-17-002},
 title = {Free Weak Nilpotent Minimum Algebras},
 url = {http://www.ac.tuwien.ac.at/files/tr/ac-tr-17-002.pdf},
 year = {2017}
}