Authors, please note: One paper / presentation is included in each registration fee for SHC 2019 / SWC 2019.

Should an author wish to present a second / third abstract (oral or poster presentation) or a second / third abstract from a colleague, this will be subject to a fee of 50 USD per additional abstract. This fee is to cover the costs of the extra paper management and publication in the proceedings and must be paid by the main author.

Failure to pay the publication / presentation fee, will result in the second presentation being removed from the program and the paper will not be published.