An approach for managing the evolution of web-based educational applications Yannis Psaromiligkos* Symeon Retalis
![Yannis PSAROMILIGKOS | Professor | Professor | University of West Attica, Athens | TEIATH | Department of Business Administration | Research profile Yannis PSAROMILIGKOS | Professor | Professor | University of West Attica, Athens | TEIATH | Department of Business Administration | Research profile](https://c5.rgstatic.net/m/437738464651637/images/template/default/profile/profile_default_l.jpg)
Yannis PSAROMILIGKOS | Professor | Professor | University of West Attica, Athens | TEIATH | Department of Business Administration | Research profile
Research Article Online Estimation of Time-Varying Volatility Using a Continuous-Discrete LMS Algorithm
![I. SALMON | Professor (Associate) | phd | University of West Attica, Athens | TEIATH | Department of Business Administration | Research profile I. SALMON | Professor (Associate) | phd | University of West Attica, Athens | TEIATH | Department of Business Administration | Research profile](https://i1.rgstatic.net/ii/profile.image/882726370562048-1587469775213_Q512/I-Salmon.jpg)