Taxi Driver—IMDB
http://www.imdb.com/title/tt0075314/
The International Movie Database entry for Taxi Driver.
Taxi Driver: Underground Man by Pauline Kael
http://scrapsfromtheloft.com/2017/05/24/taxi-driver-underground-man-review-pauline-kael/
A review of the film by Pauline Kael, a notable critic for The New Yorker.
'Taxi Driver' Oral History: De Niro, Scorsese, Foster, Schrader Spill All on 40th Anniversary
http://www.hollywoodreporter.com/features/taxi-driver-oral-history-de-881032
An article about the 40th anniversary screening of the film.
Roger Ebert Interviews Martin Scorsese
http://www.rogerebert.com/interviews/interview-with-martin-scorsese
The acclaimed film critic Roger Ebert interviews director Martin Scorsese.
Robert De Niro Compares Donald Trump to 'Taxi Driver' Character
An article in which De Niro compares Trump to Travis Bickle.
Why we are locked in the back of Taxi Driver's mind
https://www.theguardian.com/film/2011/may/13/taxi-driver-reissue-scorsese-de-niro
An article in The Guardian about the haunting legacy of the film.