| article html file updated | 7 February 2020 13:28 CET | Update | https://www.mdpi.com/2077-0472/6/3/38 |
| article html file updated | 5 May 2019 06:51 CEST | Update | N/A |
| article html file updated | 27 March 2019 13:55 CET | Update | N/A |
| article html file updated | 29 September 2016 08:24 CEST | Update | N/A |
| article html file updated | 17 August 2016 12:57 CEST | Original file | N/A |
| article xml uploaded. | 17 August 2016 12:55 CEST | Original file | https://www.mdpi.com/2077-0472/6/3/38/xml |
| article pdf uploaded. | 17 August 2016 12:55 CEST | Version of Record | https://www.mdpi.com/2077-0472/6/3/38/pdf |
