[DFTB-Plus-User] About the fee for using DFTB software to publish articles

[hezi_826]

Dear sir/madam,
 
I want to know that if I want to publish articles containing results calculated by DFTB software, is this matter is a "commercial use"? If so, how much should I pay for the software producer?
 
Thank you very much.
 
>From Hertz 
 
 
 
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