The New York Times article (October 15, 2019)

The New York Times article (November 1, 2019)

The New York Times article (December 12, 2019)

obituary in the New York Times

obituary in the New York Times

The New York Times article (November 4, 2017)

The New York Times article (October 5, 2016)

The New York Times article (September 6, 2019)

The New York Times article (February 1, 2020)