mimimum length of last line in paragraph

[Bas Peters <bpeters@xxxxxx>]

Is there a possibility to set the minimum length of a line?

I am formatting bibliographic records, and sometimes they end with just
the p.
Arnskov, Laurits Thomas Laursen, 1878-
Folkeforbundet : dets organisation og 
virksomhed i hovedtræk / L. Th. Arnskov. - 
København : C.A. Reitzel, 1925. - 236, [2] 
p.

I would like to set the length of a line to the minimum of 4 characters
to get the following result:

Arnskov, Laurits Thomas Laursen, 1878-
Folkeforbundet : dets organisation og 
virksomhed i hovedtræk / L. Th. Arnskov. - 
København : C.A. Reitzel, 1925. - 236, 
[2] p.

Thanks in advance,

Bas Peters
IDC Publishers


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