| article html file updated | 7 February 2020 06:34 CET | Update | https://www.mdpi.com/2072-666X/7/4/55 |
| article html file updated | 21 September 2019 14:12 CEST | Update | N/A |
| article html file updated | 5 May 2019 20:05 CEST | Update | N/A |
| article html file updated | 27 March 2019 00:36 CET | Update | N/A |
| article html file updated | 15 October 2018 04:01 CEST | Update | N/A |
| article html file updated | 29 April 2016 05:28 CEST | Update | N/A |
| article html file updated | 29 March 2016 12:32 CEST | Original file | N/A |
| article xml uploaded. | 29 March 2016 12:31 CEST | Original file | https://www.mdpi.com/2072-666X/7/4/55/xml |
| article pdf uploaded. | 29 March 2016 12:31 CEST | Version of Record | https://www.mdpi.com/2072-666X/7/4/55/pdf |
