| article html file updated | 7 February 2020 04:42 CET | Update | https://www.mdpi.com/1420-3049/21/2/218 |
| article html file updated | 21 September 2019 11:31 CEST | Update | N/A |
| article html file updated | 6 May 2019 00:01 CEST | Update | N/A |
| article html file updated | 26 March 2019 21:01 CET | Update | N/A |
| article html file updated | 17 September 2018 03:14 CEST | Original file | N/A |
| article pdf uploaded. | 18 February 2016 11:29 CET | Version of Record | https://www.mdpi.com/1420-3049/21/2/218/pdf |
| article xml uploaded. | 18 February 2016 11:29 CET | Original file | https://www.mdpi.com/1420-3049/21/2/218/xml |
