Events
Include expired: true
and City: Bogota or Boston or Gebze or Heidelberg or Maastricht or Philadelphia or Prague or Providence or Sheffield
and Organiser: Hanson Wade or IEEE or diXa
Include expired: true
and City: Bogota or Boston or Gebze or Heidelberg or Maastricht or Philadelphia or Prague or Providence or Sheffield
and Organiser: Hanson Wade or IEEE or diXa