Image databases organization and data models. - Boris Rachev; Irena Valova; Mariana Stoeva (CompSysTech, 2000)

Image databases: an approach for image segmentation & color reduction analysis & synthesis. - Irena Valova; Boris Rachev (CompSysTech, 2003)

Retrieval by Color Features in Image Databases. - Irena Valova; Boris Rachev (ADBIS (Local Proceedings), 2004)

Application of planning techniques in knowledge-managed tutoring systems. - Milko T. Marinov; Irena Valova (ITHET, 2016)

Drying process management laboratory with remote access. - Nikolay Valov; Irena Valova (ITHET, 2017)

Web-based university staff's publication analysis system. - Irena Valova; Yordan Kalmukov (MIPRO, 2018)

Raspberry Pi as a Tool to Combine Different Courses Part of University Education. - Nikolay Valov; Irena Valova (ITHET, 2019)

Design and development of an automated web crawler used for building image databases. - Yordan Kalmukov; Irena Valova (MIPRO, 2019)

Research on Students' Opinion on the Method of Presenting Teaching Materials. - Tsvetelina Mladenova; Yordan Kalmukov; Irena Valova (MIPRO, 2021)

Analyzing Methods for Classification of Electronic Word-of-Mouth: A Review. - Gabriel Kanev; Tsvetelina Mladenova; Irena Valova (AICCONF, 2024)