| article html file updated | 7 February 2020 03:25 CET | Update | https://www.mdpi.com/1420-3049/21/1/91 |
| article html file updated | 21 September 2019 09:39 CEST | Update | N/A |
| article html file updated | 6 May 2019 02:36 CEST | Update | N/A |
| article html file updated | 26 March 2019 18:26 CET | Update | N/A |
| article html file updated | 12 November 2018 04:23 CET | Original file | N/A |
| article pdf uploaded. | 18 January 2016 15:39 CET | Updated version of record | https://www.mdpi.com/1420-3049/21/1/91/pdf |
| article pdf uploaded. | 14 January 2016 11:35 CET | Version of Record | https://www.mdpi.com/1420-3049/21/1/91/pdf-vor |
| article xml uploaded. | 14 January 2016 11:35 CET | Original file | https://www.mdpi.com/1420-3049/21/1/91/xml |
