| article html file updated | 7 February 2020 08:37 CET | Update | https://www.mdpi.com/2073-4395/6/2/32 |
| article html file updated | 5 May 2019 15:56 CEST | Update | N/A |
| article html file updated | 27 March 2019 04:33 CET | Update | N/A |
| article html file updated | 30 June 2016 07:41 CEST | Update | N/A |
| article html file updated | 16 May 2016 22:56 CEST | Original file | N/A |
| article xml uploaded. | 13 May 2016 08:37 CEST | Original file | https://www.mdpi.com/2073-4395/6/2/32/xml |
| article pdf uploaded. | 13 May 2016 08:37 CEST | Version of Record | https://www.mdpi.com/2073-4395/6/2/32/pdf |
