Modeling network and web services resource using WSDL. - Martin Tsenov (CompSysTech, 2004)

Example of communication between distributed network systems using web services. - Martin Tsenov (CompSysTech, 2007)

Open source solution for workflow execution architecture. - Martin Tsenov; Krasimir Trichkov; Simeon Tsvetanov (CompSysTech, 2009)