A book named A = B has been written by Marko Petkovšek, Herbert Wilf and Doron Zeilberger describing the three main approaches described above.
The Bourne Identity | The Bourne Identity (2002 film) | My Secret Identity | Identity Cards Act 2006 | Identity document | Dissociative identity disorder | Digital identity | The Bourne Identity (novel) | Subscriber Identity Module | Sexuality and gender identity-based cultures | Hong Kong Identity Card | Taiwanese identity | Subscriber identity module | Sexual identity | Identity on Fire | Identity formation | Identity element | identity document | gender identity | dissociative identity disorder | Cultural identity | Corporate identity | corporate identity | Vaughan's identity | Standards of identity for food | sexuality and gender identity-based cultures | Resident Identity Card | Personal identity | personal identity | Pan-European identity |