| article html file updated | 8 February 2020 01:52 CET | Update | https://www.mdpi.com/1996-1944/10/3/308 | 
| article html file updated | 23 September 2019 22:09 CEST | Update | - | 
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| article xml uploaded. | 22 March 2017 13:28 CET | Update | https://www.mdpi.com/1996-1944/10/3/308/xml | 
| article pdf uploaded. | 22 March 2017 13:28 CET | Updated version of record | https://www.mdpi.com/1996-1944/10/3/308/pdf | 
| article html file updated | 21 March 2017 10:12 CET | Original file | - | 
| article pdf uploaded. | 21 March 2017 10:11 CET | Version of Record | https://www.mdpi.com/1996-1944/10/3/308/pdf-vor |