| article html file updated | 8 February 2020 23:14 CET | Update | https://www.mdpi.com/1422-0067/18/12/2615 | 
| article html file updated | 29 September 2019 00:19 CEST | Update | - | 
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| article html file updated | 5 December 2017 15:52 CET | Original file | - | 
| article xml uploaded. | 5 December 2017 15:51 CET | Original file | https://www.mdpi.com/1422-0067/18/12/2615/xml | 
| article pdf uploaded. | 5 December 2017 15:51 CET | Version of Record | https://www.mdpi.com/1422-0067/18/12/2615/pdf |