| article html file updated | 14 February 2020 19:51 CET | Update | https://www.mdpi.com/1422-0067/21/1/20 |
| article html file updated | 16 January 2020 07:30 CET | Update | N/A |
| article html file updated | 23 December 2019 07:11 CET | Original file | N/A |
| article pdf uploaded. | 23 December 2019 07:10 CET | Updated version of record | https://www.mdpi.com/1422-0067/21/1/20/pdf |
| article xml uploaded. | 23 December 2019 07:10 CET | Update | https://www.mdpi.com/1422-0067/21/1/20/xml |
| article xml file uploaded | 23 December 2019 07:10 CET | Update | N/A |
| article pdf uploaded. | 18 December 2019 15:53 CET | Version of Record | https://www.mdpi.com/1422-0067/21/1/20/pdf-vor |
| article xml file uploaded | 18 December 2019 15:53 CET | Original file | N/A |
