| article html file updated | 7 February 2020 22:45 CET | Update | https://www.mdpi.com/1422-0067/18/2/339 |
| article html file updated | 23 September 2019 04:22 CEST | Update | N/A |
| article html file updated | 4 May 2019 12:33 CEST | Update | N/A |
| article html file updated | 2 March 2017 10:01 CET | Update | N/A |
| article html file updated | 7 February 2017 05:01 CET | Original file | N/A |
| article pdf uploaded. | 6 February 2017 12:58 CET | Version of Record | https://www.mdpi.com/1422-0067/18/2/339/pdf |
