Free product (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Free product" in English language version.

refsWebsite

Global rank English rank

2^nd place

2^nd place

451^st place

277^th place

ams.org

A. Karrass and D. Solitar (1970) The subgroups of a free product of two groups with an amalgamated subgroup, Transactions of the American Mathematical Society 150: 227–255.

doi.org

Alperin, Roger C. (April 1993). "PSL₂(Z) = Z₂ * Z₃". Amer. Math. Monthly. 100: 385–386. doi:10.1080/00029890.1993.11990418.