Zaitsev D.A. Petri Nets for Modeling and Computing: Videolecture. USA: IGI-Global, August, 2015, 2 hrs 25 mins.  
http://www.igi-global.com/video/petri-nets-modeling-computing/135018

Recommended by Professor Wolfgang Reisig:

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WOLFGANG REISIG: 

By the way, the price you demand is absolutely unrealistic. You can be happy if somebody looks at your stuff voluntarily and would quote it.

DMITRY ZAITSEV: 

If my lecture's price is great then I am the great.

WOLFGANG REISIG: 

.. just an additional remark: Also with the biggest advertising effort you would not sell more than 2 or 3 copies of your video, at most.

to repeat: even with plenty of advertising, nobody will give you a single Dollar for this video. The "preview" just gives a contents list. You do not even show a few minutes of your stuff for free. Be realistic; this enterprise  is inevitably doomed to fail. 

You will not sell a single copy of that video. The publishers are idiots or criminals. No serious potential client will pay that money, not being given some samples of what and how the video is done. 

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