Details about the CfP here:
Submission is by the end of April 30th 2015 in pdf format, with no particular formatting regulations for the review stage.
Papers should be submitted to: https://easychair.org/conferences/?conf=sispos2015
Depending on the number of submissions by the 23rd April I will consider requests for extensions, but not if I already have notice of a good number of papers - so do NOT depend on this :-)
As ever, any queries or comments email me, firstname.lastname@example.org