| article html file updated | 8 February 2020 04:01 CET | Update | https://www.mdpi.com/2073-4395/7/2/30 |
| article html file updated | 24 September 2019 10:16 CEST | Update | N/A |
| article html file updated | 4 May 2019 01:25 CEST | Update | N/A |
| article html file updated | 28 June 2017 12:21 CEST | Update | N/A |
| article html file updated | 21 April 2017 12:38 CEST | Original file | N/A |
| article xml uploaded. | 21 April 2017 12:37 CEST | Original file | https://www.mdpi.com/2073-4395/7/2/30/xml |
| article pdf uploaded. | 21 April 2017 12:37 CEST | Updated version of record | https://www.mdpi.com/2073-4395/7/2/30/pdf |
| article pdf uploaded. | 20 April 2017 14:04 CEST | Version of Record | https://www.mdpi.com/2073-4395/7/2/30/pdf-vor |
