[NTG-context] last-name only in bib

[Idris Samawi Hamid]

Dear Taco,

I need a last-name only option for a few but not all authors, such that no 
comma comes after the last name; rather it goes straight to the year e.g., it 
appears in the actual bibliography as

==============================================
McDermott (1976). The Theology of Shaykh Mufid
==============================================

Right now I get (with spurious comma)

==============================================
McDermott, (1976). The Theology of Shaykh Mufid
==============================================

Sometime authors give me bib's where the first name of the author is 
unknown...

Best
Idris

============================
Professor Idris Samawi Hamid
Department of Philosophy
Colorado State University
Fort Collins, CO 80523