| article html file updated | 8 February 2020 02:35 CET | Update | https://www.mdpi.com/1422-0067/18/4/735 |
| article html file updated | 24 September 2019 02:09 CEST | Update | - |
| article html file updated | 4 May 2019 04:18 CEST | Update | - |
| article html file updated | 2 May 2017 05:53 CEST | Update | - |
| article html file updated | 31 March 2017 11:57 CEST | Update | - |
| article xml uploaded. | 31 March 2017 11:56 CEST | Update | https://www.mdpi.com/1422-0067/18/4/735/xml |
| article pdf uploaded. | 31 March 2017 11:56 CEST | Updated version of record | https://www.mdpi.com/1422-0067/18/4/735/pdf |
| article html file updated | 30 March 2017 14:34 CEST | Original file | - |
| article pdf uploaded. | 30 March 2017 14:33 CEST | Version of Record | https://www.mdpi.com/1422-0067/18/4/735/pdf-vor |
