| article html file updated | 8 February 2020 01:34 CET | Update | https://www.mdpi.com/2311-553X/3/1/13 |
| article html file updated | 23 September 2019 20:23 CEST | Update | - |
| article html file updated | 4 May 2019 06:30 CEST | Update | - |
| article html file updated | 30 March 2017 11:34 CEST | Update | - |
| article html file updated | 16 March 2017 12:07 CET | Update | - |
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| article html file updated | 16 March 2017 12:06 CET | Original file | - |
| article xml uploaded. | 16 March 2017 12:05 CET | Original file | https://www.mdpi.com/2311-553X/3/1/13/xml |
| article pdf uploaded. | 16 March 2017 12:05 CET | Version of Record | https://www.mdpi.com/2311-553X/3/1/13/pdf |
