There is no charge on submission.
The article publishing charge is 250/300/350 euros depending on the length of the paper. This fee includes a full open-access to the paper, online color figures and the high-resolution PDF file (final published paper) that can be freely disseminated.
If the Authors are interested to color figures printed also in the hard copy, an additional cost is requested. This cost depends on number of figures but approximately ranges between 150 euros and 200 euros per color figure.
In case of color figures online only, the authors must submit illustrations and tables clearly understandable also when printed in black and white in the hard copy of GFDQ.