| article html file updated | 9 February 2020 01:08 CET | Update | https://www.mdpi.com/1422-0067/19/1/55 |
| article html file updated | 29 September 2019 11:22 CEST | Update | - |
| article html file updated | 2 May 2019 06:15 CEST | Update | - |
| article html file updated | 18 April 2019 04:13 CEST | Update | - |
| article html file updated | 28 March 2019 11:01 CET | Update | - |
| article html file updated | 2 February 2018 09:29 CET | Update | - |
| article html file updated | 25 December 2017 11:03 CET | Original file | - |
| article xml uploaded. | 25 December 2017 11:02 CET | Update | https://www.mdpi.com/1422-0067/19/1/55/xml |
| article xml uploaded. | 25 December 2017 11:02 CET | Original file | - |
| article pdf uploaded. | 25 December 2017 11:02 CET | Version of Record | https://www.mdpi.com/1422-0067/19/1/55/pdf |
