Remember that travelling to China requires visas, -but they should be easy to obtain for participants. If you need a letter -of invitation contact Xingyuan (xingyuanzhang at 126 dot com) with -name, title, work address, e-mail and paper title (if you have a paper). - - +but they should be relatively easy to obtain for participants. You will need +a letter of invitation which Xingyuan will send you (xingyuanzhang at 126 dot com). +You need to provide him with name, title, work address, e-mail and paper title +(if you present a paper).