| article html file updated | 6 February 2020 17:40 CET | Update | https://www.mdpi.com/2076-3271/3/2/16 |
| article html file updated | 6 May 2019 21:55 CEST | Update | N/A |
| article html file updated | 26 March 2019 00:41 CET | Update | N/A |
| article html file updated | 21 August 2015 10:29 CEST | Update | N/A |
| article html file updated | 30 June 2015 03:11 CEST | Original file | N/A |
| article xml file uploaded | 30 June 2015 03:11 CEST | Original file | https://www.mdpi.com/2076-3271/3/2/16/xml |
| article pdf uploaded. | 3 June 2015 10:26 CEST | Updated version of record | https://www.mdpi.com/2076-3271/3/2/16/pdf |
| article pdf uploaded. | 15 April 2015 13:11 CEST | Version of Record | https://www.mdpi.com/2076-3271/3/2/16/pdf-vor |
