| article html file updated | 11 February 2020 14:47 CET | Update | https://www.mdpi.com/2075-4701/9/2/206 | 
| article html file updated | 14 October 2019 17:20 CEST | Update | - | 
| article html file updated | 26 April 2019 19:09 CEST | Update | - | 
| article html file updated | 12 April 2019 15:06 CEST | Update | - | 
| article html file updated | 3 April 2019 17:35 CEST | Update | - | 
| article html file updated | 28 February 2019 18:47 CET | Update | - | 
| article html file updated | 22 February 2019 11:36 CET | Original file | - | 
| article pdf uploaded. | 22 February 2019 11:34 CET | Updated version of record | https://www.mdpi.com/2075-4701/9/2/206/pdf | 
| article xml uploaded. | 22 February 2019 11:34 CET | Update | https://www.mdpi.com/2075-4701/9/2/206/xml | 
| article xml file uploaded | 22 February 2019 11:34 CET | Update | - | 
| article pdf uploaded. | 9 February 2019 18:20 CET | Version of Record | https://www.mdpi.com/2075-4701/9/2/206/pdf-vor | 
| article xml file uploaded | 9 February 2019 18:20 CET | Original file | - |