20210206215600.0 1999-6918 1999-6918 Proceedings of the ... annual meeting of the ISSS Proceedings of the ... annual meeting of the ISSS. http://journals.isss.org/index.php/index/about 1999-6918 Proceedings of the ... annual meeting of the ISSS 1999-6918 1999-6918 Proceedings of the ... annual meeting of the ISSS.