| article html file updated | 7 February 2020 11:01 CET | Update | https://www.mdpi.com/2075-163X/6/3/63 |
| article html file updated | 5 May 2019 11:23 CEST | Update | N/A |
| article html file updated | 27 March 2019 09:00 CET | Update | N/A |
| article html file updated | 28 September 2016 07:35 CEST | Update | N/A |
| article html file updated | 30 June 2016 11:21 CEST | Original file | N/A |
| article xml uploaded. | 30 June 2016 11:20 CEST | Original file | https://www.mdpi.com/2075-163X/6/3/63/xml |
| article pdf uploaded. | 30 June 2016 11:20 CEST | Version of Record | https://www.mdpi.com/2075-163X/6/3/63/pdf |
