| article html file updated | 8 February 2020 07:12 CET | Update | https://www.mdpi.com/2075-5309/7/2/44 |
| article html file updated | 25 September 2019 02:50 CEST | Update | N/A |
| article html file updated | 3 May 2019 19:30 CEST | Update | N/A |
| article html file updated | 28 June 2017 12:47 CEST | Update | N/A |
| article html file updated | 23 June 2017 08:27 CEST | Original file | N/A |
| article xml uploaded. | 23 June 2017 08:26 CEST | Update | https://www.mdpi.com/2075-5309/7/2/44/xml |
| article pdf uploaded. | 1 June 2017 13:36 CEST | Version of Record | https://www.mdpi.com/2075-5309/7/2/44/pdf |
