| article html file updated | 8 February 2020 00:50 CET | Update | https://www.mdpi.com/2309-608X/3/1/13 |
| article html file updated | 23 September 2019 16:17 CEST | Update | - |
| article html file updated | 4 May 2019 08:05 CEST | Update | - |
| article html file updated | 11 December 2018 09:17 CET | Update | - |
| article html file updated | 6 March 2017 09:18 CET | Original file | - |
| article xml uploaded. | 6 March 2017 09:17 CET | Original file | https://www.mdpi.com/2309-608X/3/1/13/xml |
| article pdf uploaded. | 6 March 2017 09:17 CET | Version of Record | https://www.mdpi.com/2309-608X/3/1/13/pdf |
