Thank you freightman, this is a starting point.
Nevertheless, Wongs uses a different system ( its simple halves with tags like 1.5 and 0.5 etc) so in approximation i should double these indices which should be not very precise. Also the book is a little bit old and didnt use modern computers, plus Wongs didnt uses calculation TC with flooring.
So i am still interested in others sources of informations.
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