What is the fine-grained topic of the following text: o A call for extended version of IWCT 2018 accepted papers to be included in a journal special issue (in the form a post-workshop publication, independent of the IEEE proceedings) will be announced in the IWCT 2018 website and details will be given during the workshop. Only return the topic.
Post-workshop publication of extended versions of accepted papers from IWCT 2018.