| article html file updated | 7 February 2020 07:45 CET | Update | https://www.mdpi.com/2078-2489/7/2/23 |
| article html file updated | 5 May 2019 17:38 CEST | Update | N/A |
| article html file updated | 27 March 2019 02:54 CET | Update | N/A |
| article html file updated | 24 November 2016 22:46 CET | Update | N/A |
| article html file updated | 26 April 2016 09:12 CEST | Original file | N/A |
| article xml uploaded. | 26 April 2016 09:10 CEST | Original file | https://www.mdpi.com/2078-2489/7/2/23/xml |
| article pdf uploaded. | 26 April 2016 09:10 CEST | Version of Record | https://www.mdpi.com/2078-2489/7/2/23/pdf |
