These three-part publications & mdash; consisting of annotated calendars ( annotated tables of contents ), keyword-in-context / author indexes, and introductory studies & mdash; have generated much of the content of the Retrospective Index Online, a database of more than 725, 000 highly annotated citations.
12.
An analysis of " Teacher Educator s handbook : Building a knowledge base for the preparation of teachers " ( Murray, 1996 ) shows Shulman as the fourth most cited author of the close to 1500 authors in the book s author index with an overwhelming majority of those references made to this concept of PCK ( Murray, 1996, referred by Segall, 2004 ).
