About: http://webisa.webdatacommons.org/263899995

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Kruskal himself pioneered some of the generalizations, such as the existence of infinitely many conserved quantities for the sine-Gordon equation.
http://www.w3.org/ns/prov#wasQuotedFrom	wikipedia.org