The congress will be pleased to send a formal letter of invitation to any individual requesting one. It is understood that such an invitation is intended to help potential delegates to raise funds or to obtain a visa. This does not imply a commitment from the ISSM and ESSM to provide any financial support. Please request invitation letters from the congress office CPO HANSER SERVICE ( well in advance but no later than 22 May 2013 as especially during the last weeks before the congress, processing time might vary. The letters will be sent as email attachment. If an express delivery is required, the delegate shall order a courier at his/her own expense.