Novak, A. 2016. Welcome speech. XVIII International Coal Preparation Congress: 28 June-01 July 2016 Saint-Petersburg, Russia .

Novak, A., (2016). Welcome speech. XVIII International Coal Preparation Congress: 28 June-01 July 2016 Saint-Petersburg, Russia .

Novak, Alexander. "Welcome speech," XVIII International Coal Preparation Congress: 28 June-01 July 2016 Saint-Petersburg, Russia , 2016

Novak, Alexander. "Welcome speech." XVIII International Coal Preparation Congress: 28 June-01 July 2016 Saint-Petersburg, Russia , 2016

Novak, A. (2016) . "Welcome speech." XVIII International Coal Preparation Congress: 28 June-01 July 2016 Saint-Petersburg, Russia .

@article{article, author={Alexander Novak}, title={Welcome speech}, journal={XVIII International Coal Preparation Congress: 28 June-01 July 2016 Saint-Petersburg, Russia}, year=2016}