| article html file updated | 8 February 2020 03:19 CET | Update | https://www.mdpi.com/1422-0067/18/4/803 |
| article html file updated | 24 September 2019 06:19 CEST | Update | - |
| article html file updated | 4 May 2019 02:42 CEST | Update | - |
| article html file updated | 2 May 2017 06:04 CEST | Update | - |
| article html file updated | 13 April 2017 12:09 CEST | Original file | - |
| article xml uploaded. | 13 April 2017 12:07 CEST | Original file | https://www.mdpi.com/1422-0067/18/4/803/xml |
| article pdf uploaded. | 13 April 2017 12:07 CEST | Updated version of record | https://www.mdpi.com/1422-0067/18/4/803/pdf |
| article pdf uploaded. | 11 April 2017 12:14 CEST | Version of Record | https://www.mdpi.com/1422-0067/18/4/803/pdf-vor |
