| article html file updated | 6 February 2020 17:42 CET | Update | https://www.mdpi.com/2075-4442/3/2/281 |
| article html file updated | 6 May 2019 21:53 CEST | Update | N/A |
| article html file updated | 26 March 2019 00:43 CET | Update | N/A |
| article html file updated | 21 August 2015 10:34 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/2075-4442/3/2/281/xml |
| article pdf uploaded. | 17 April 2015 08:44 CEST | Updated version of record | https://www.mdpi.com/2075-4442/3/2/281/pdf |
| article pdf uploaded. | 16 April 2015 09:12 CEST | Version of Record | https://www.mdpi.com/2075-4442/3/2/281/pdf-vor |
