| article html file updated | 8 February 2020 02:17 CET | Update | https://new.mdpi.com/1422-0067/18/4/704 |
| article html file updated | 24 September 2019 00:24 CEST | Update | - |
| article html file updated | 4 May 2019 04:58 CEST | Update | - |
| article html file updated | 2 May 2017 05:48 CEST | Update | - |
| article html file updated | 27 March 2017 08:23 CEST | Original file | - |
| article xml uploaded. | 27 March 2017 08:22 CEST | Original file | https://new.mdpi.com/1422-0067/18/4/704/xml |
| article pdf uploaded. | 27 March 2017 08:22 CEST | Updated version of record | https://new.mdpi.com/1422-0067/18/4/704/pdf |
| article pdf uploaded. | 25 March 2017 11:49 CET | Version of Record | https://new.mdpi.com/1422-0067/18/4/704/pdf-vor |
