![Stergios Papachristos, Ioannis Tsilis, Georgios Tziallas and Ioannis Christou of Greece pose with their silver medals after the Men's Four final at the World Rowing Championships in Bled September 4, 2011. REUTERS/Srdjan Stergios Papachristos, Ioannis Tsilis, Georgios Tziallas and Ioannis Christou of Greece pose with their silver medals after the Men's Four final at the World Rowing Championships in Bled September 4, 2011. REUTERS/Srdjan](https://c8.alamy.com/comp/2D03P1C/stergios-papachristos-ioannis-tsilis-georgios-tziallas-and-ioannis-christou-of-greece-pose-with-their-silver-medals-after-the-mens-four-final-at-the-world-rowing-championships-in-bled-september-4-2011-reuterssrdjan-zivulovic-slovenia-tags-sport-rowing-2D03P1C.jpg)
Stergios Papachristos, Ioannis Tsilis, Georgios Tziallas and Ioannis Christou of Greece pose with their silver medals after the Men's Four final at the World Rowing Championships in Bled September 4, 2011. REUTERS/Srdjan
![Ioannis KALAVROUZIOTIS | Professor | Hellenic Open University, Pátra | School of Science and Technology Ioannis KALAVROUZIOTIS | Professor | Hellenic Open University, Pátra | School of Science and Technology](https://i1.rgstatic.net/ii/profile.image/840973345120257-1577515078229_Q512/Ioannis-Kalavrouziotis.jpg)
Ioannis KALAVROUZIOTIS | Professor | Hellenic Open University, Pátra | School of Science and Technology
![Stergios Papachristos, Ioannis Tsilis, Georgios Tziallas and Ioannis Christou of Greece compete during the Men's Four final at the World Rowing Championships in Bled September 4, 2011. REUTERS/Srdjan Zivulovic (SLOVENIA - Tags: Stergios Papachristos, Ioannis Tsilis, Georgios Tziallas and Ioannis Christou of Greece compete during the Men's Four final at the World Rowing Championships in Bled September 4, 2011. REUTERS/Srdjan Zivulovic (SLOVENIA - Tags:](https://c8.alamy.com/comp/2CYHXF1/stergios-papachristos-ioannis-tsilis-georgios-tziallas-and-ioannis-christou-of-greece-compete-during-the-mens-four-final-at-the-world-rowing-championships-in-bled-september-4-2011-reuterssrdjan-zivulovic-slovenia-tags-sport-rowing-2CYHXF1.jpg)
Stergios Papachristos, Ioannis Tsilis, Georgios Tziallas and Ioannis Christou of Greece compete during the Men's Four final at the World Rowing Championships in Bled September 4, 2011. REUTERS/Srdjan Zivulovic (SLOVENIA - Tags:
Ag Ioannis Chrysostomos Church Kimolos Island Cyclades Greece Stock Photo - Download Image Now - iStock
![Fulham's Steed Malbranque is tackled by Egaleo's Ioannis Christou, during 3rd round Intertoto Cup 1st leg at Craven Cottage in West London Stock Photo - Alamy Fulham's Steed Malbranque is tackled by Egaleo's Ioannis Christou, during 3rd round Intertoto Cup 1st leg at Craven Cottage in West London Stock Photo - Alamy](https://c8.alamy.com/comp/G76M9H/fulhams-steed-malbranque-is-tackled-by-egaleos-ioannis-christou-during-G76M9H.jpg)
Fulham's Steed Malbranque is tackled by Egaleo's Ioannis Christou, during 3rd round Intertoto Cup 1st leg at Craven Cottage in West London Stock Photo - Alamy
![Greece's Stergios Papachristos, Ioannis Tsilis, Georgios Tziallas and Ioannis Christou celebrate after finishing second in their men's four semi-finals rowing event during the London 2012 Olympic Games at Eton Dorney August 2, Greece's Stergios Papachristos, Ioannis Tsilis, Georgios Tziallas and Ioannis Christou celebrate after finishing second in their men's four semi-finals rowing event during the London 2012 Olympic Games at Eton Dorney August 2,](https://c8.alamy.com/comp/2CXEWM4/greeces-stergios-papachristos-ioannis-tsilis-georgios-tziallas-and-ioannis-christou-celebrate-after-finishing-second-in-their-mens-four-semi-finals-rowing-event-during-the-london-2012-olympic-games-at-eton-dorney-august-2-2012-reutersmark-blinch-britain-tags-olympics-sport-rowing-2CXEWM4.jpg)
Greece's Stergios Papachristos, Ioannis Tsilis, Georgios Tziallas and Ioannis Christou celebrate after finishing second in their men's four semi-finals rowing event during the London 2012 Olympic Games at Eton Dorney August 2,
![Ioannis CHRISTOU | Master of Library and Information Science | 424 General Military Training Hospital, Thessaloníki Ioannis CHRISTOU | Master of Library and Information Science | 424 General Military Training Hospital, Thessaloníki](https://i1.rgstatic.net/ii/profile.image/737857345961985-1552930308254_Q512/Ioannis-Christou.jpg)