| article html file updated | 8 February 2020 08:27 CET | Update | https://www.mdpi.com/2075-5309/7/2/53 |
| article html file updated | 3 May 2019 17:10 CEST | Update | N/A |
| article html file updated | 28 June 2017 12:50 CEST | Update | N/A |
| article html file updated | 19 June 2017 03:51 CEST | Original file | N/A |
| article xml uploaded. | 19 June 2017 03:50 CEST | Original file | https://www.mdpi.com/2075-5309/7/2/53/xml |
| article pdf uploaded. | 19 June 2017 03:50 CEST | Updated version of record | https://www.mdpi.com/2075-5309/7/2/53/pdf |
| article pdf uploaded. | 16 June 2017 10:22 CEST | Version of Record | https://www.mdpi.com/2075-5309/7/2/53/pdf-vor |
