Events
Include expired: true
and City: Bogota or Gent or Heidelberg or Lausanne or Olomouc or Oslo or Philadelphia or Porto or Sheffield or Valencia
and Organiser: BITS or Karel Berka, Pavel Polishchuk
Include expired: true
and City: Bogota or Gent or Heidelberg or Lausanne or Olomouc or Oslo or Philadelphia or Porto or Sheffield or Valencia
and Organiser: BITS or Karel Berka, Pavel Polishchuk