Deleting in Bloom Filters
I couldn't find the source, but the idea is simple: Use additional bloom filter to represent the set of the deletions.

As this is a very simple solution, it might be considered as a folklore.

Anyway, I found a short reference to this solution in the following paper (Theory and Practice of Bloom Filters for Distributed Systems):

http://www.dca.fee.unicamp.br/~chesteve/pubs/bloom-filter-ieee-survey-preprint.pdf

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  Removal of an element can be implemented by using a second Bloom ﬁlter that contains elements that have been removed


In the third section of this paper, you can read about many techniques to deal with deletion. Maybe you will find there some reference (again - I'm not sure there is some paper about it, as it is a simple idea).