| article html file updated | 7 February 2020 07:25 CET | Update | https://www.mdpi.com/1420-3049/21/4/473 |
| article html file updated | 21 September 2019 15:23 CEST | Update | N/A |
| article html file updated | 5 May 2019 18:21 CEST | Update | N/A |
| article html file updated | 27 March 2019 02:09 CET | Update | N/A |
| article html file updated | 17 September 2018 03:58 CEST | Update | N/A |
| article html file updated | 28 April 2016 11:49 CEST | Update | N/A |
| article html file updated | 18 April 2016 08:54 CEST | Original file | N/A |
| article xml uploaded. | 18 April 2016 08:52 CEST | Original file | https://www.mdpi.com/1420-3049/21/4/473/xml |
| article pdf uploaded. | 18 April 2016 08:52 CEST | Version of Record | https://www.mdpi.com/1420-3049/21/4/473/pdf |
