| article html file updated | 8 February 2020 02:34 CET | Update | https://www.mdpi.com/1422-0067/18/4/733 |
| article html file updated | 24 September 2019 02:04 CEST | Update | - |
| article html file updated | 4 May 2019 04:20 CEST | Update | - |
| article html file updated | 2 May 2017 05:53 CEST | Update | - |
| article html file updated | 31 March 2017 12:04 CEST | Update | - |
| article xml uploaded. | 31 March 2017 12:03 CEST | Update | https://www.mdpi.com/1422-0067/18/4/733/xml |
| article pdf uploaded. | 31 March 2017 12:03 CEST | Updated version of record | https://www.mdpi.com/1422-0067/18/4/733/pdf |
| article html file updated | 30 March 2017 11:47 CEST | Original file | - |
| article pdf uploaded. | 30 March 2017 11:46 CEST | Version of Record | https://www.mdpi.com/1422-0067/18/4/733/pdf-vor |
