The seeds of Doctor Zhivago go back almost to the earliest stages of Pasternak’s prose-writing career, resurfacing every so often in fictional fragments (accumulated under such titles as “Patrick’s Notes” and “Fragments of a Novel”). However the novel as we now know it was begun in earnest just after the Second World War, under the working title of “Boys and Girls”, and was completed as “Doctor Zhivago” by the end of 1955. [For further information on the novel’s genesis, please see the biographical profile of Pasternak.] From the Soviet viewpoint, Pasternak’s novel was far removed from the official …
Cornwell, Neil. "Doktor Zhivago". The Literary Encyclopedia. First published 27 May 2004; last revised 30 November -1.
[http://www.litencyc.com/php/sworks.php?rec=true&UID=12495, accessed 19 April 2015.]