Thanks Lionel for your input .
What I did yesterday was write a similar letter to 
Equis and they sent me a manual of about 140 pages called Formula Book 
.
It contains many excersises but I have not 
evaluated it yet .
looks good though .Maybe somebody else would like 
this too.
Kind regards ,
 
Jan
 
 
 
 
 
 
 
 
 
 
 
 
 
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