(1963) Kruskal rank or k-rank (1977), closely related to the spark References External links The Dyen, Kruskal and Black lexicostatistical database : the 200-meaning Swadesh lists for 95 Indo-European languages. MacTutor biography of Joseph Kruskal 20th-century American mathematicians 21st-century American mathematicians Jewish American scientists American statisticians University of Chicago alumni Princeton University alumni Scientists at Bell Labs 1928 births 2010 deaths Fellows of the American Statistical Association Scientists from New York City Mathematicians from New York (state) Combinatorialists 21st-century American Jews University of Michigan faculty People from New York City