This is an overview of links to articles where we recognized Sjak Planthof as the author. Are you Sjak Planthof? You can choose what's displayed here, just like Stefan Gillissen for example. Click “Hey, that's me!” and turn this page into your personal portfolio page. Want to know more?

Articles found online

Written by Sjak Planthof

2014

2015

2016

2017

2018

2019

2020

2021

704 articles