| article html file updated | 7 February 2020 02:53 CET | Update | https://www.mdpi.com/1420-3049/21/1/50 |
| article html file updated | 21 September 2019 08:57 CEST | Update | N/A |
| article html file updated | 6 May 2019 03:35 CEST | Update | N/A |
| article html file updated | 26 March 2019 17:32 CET | Update | N/A |
| article html file updated | 12 November 2018 04:11 CET | Original file | N/A |
| article pdf uploaded. | 22 January 2016 11:04 CET | Updated version of record | https://www.mdpi.com/1420-3049/21/1/50/pdf |
| article xml uploaded. | 22 January 2016 11:04 CET | Update | https://www.mdpi.com/1420-3049/21/1/50/xml |
| article pdf uploaded. | 30 December 2015 13:30 CET | Version of Record | https://www.mdpi.com/1420-3049/21/1/50/pdf-vor |
| article xml uploaded. | 30 December 2015 13:30 CET | Original file | N/A |
