Thousands of Greeks rallied in favour of Greece’s membership in the eurozone and the European Union in central Athens on Thursday evening, in a call made through social media during the week.

An emergency Eurogroup meeting will take place on Monday, at 16:00, according to European sources.

Russian President Vladimir Putin and Prime Minister Alexis Tsipras will discuss the situation in Greece and the progress made in the implementation of the gas pipeline that will pass through Greek territory during their meeting in St Petersburg on Friday, Putin's main foreign policy adviser said on Wednesday.

Christoforos (Christos) Kozirakis is the Greek computer engineer, who was awarded with the ACM SIGARCH Maurice Wilkes Award for 2015.