| article html file updated | 8 February 2020 18:53 CET | Update | https://www.mdpi.com/2309-608X/3/4/58 |
| article html file updated | 27 September 2019 21:00 CEST | Update | - |
| article html file updated | 2 May 2019 20:16 CEST | Update | - |
| article html file updated | 11 December 2018 08:59 CET | Update | - |
| article html file updated | 19 October 2017 23:16 CEST | Original file | - |
| article xml uploaded. | 19 October 2017 15:03 CEST | Original file | https://www.mdpi.com/2309-608X/3/4/58/xml |
| article pdf uploaded. | 19 October 2017 15:03 CEST | Version of Record | https://www.mdpi.com/2309-608X/3/4/58/pdf |
