Leadership of Germany's Greens to Athens on Wednesday; Socialists, Greens criticise Schaeuble

They will also meet members of Greece's Green party and other parties, while attending Wednesday's session of the Greek Parliament.

In Germany, meanwhile, German Finance Minister Wolfgang Schaeuble came under intense criticism from the SPD's economic expert Carsten Schneider, who accused him of seriously mishandling the negotiations on Greece's bailout by presenting his 'Grexit' plan, which Schneider said had isolated Germany in Europe.

Speaking to ARD, Schneider accused Schaeuble of resurrecting the spectre of the "very harsh Teuton," and added: "I cannot see how what Mr. Schaeuble did was useful."

While the finance minister genuinely wanted Greece's exit from the euro, he said, the SPD considered this outcome highly risky and did not share this goal, while the German Chancellor Angela Merkel also had other balances in mind.

The temporary Grexit proposal was similarly harshly criticised by the German Green party Die Grunen, which said it was a "historic mistake" of the German government and called the plan both unacceptable and unconstitutional, given that the Bundestag had not been informed.