| article html file updated | 8 February 2020 08:28 CET | Update | https://www.mdpi.com/2075-5309/7/2/52 |
| article html file updated | 25 September 2019 09:25 CEST | Update | N/A |
| article html file updated | 3 May 2019 17:07 CEST | Update | N/A |
| article html file updated | 28 June 2017 12:50 CEST | Update | N/A |
| article html file updated | 16 June 2017 11:44 CEST | Original file | N/A |
| article xml uploaded. | 16 June 2017 11:43 CEST | Original file | https://www.mdpi.com/2075-5309/7/2/52/xml |
| article pdf uploaded. | 16 June 2017 11:43 CEST | Version of Record | https://www.mdpi.com/2075-5309/7/2/52/pdf |
