Author(s): Bauer, Philipp; Rost, Harald.- 2015. 55p.

Author(s): Mühling, Tanja; Rost, Harald.- 2011. 47p.

Author(s): Beier, Loreen; Rost, Harald; Scharpf, Simone.- 2009. 53p.

Author(s): Mühling, Tanja; Rost, Harald.- 2010. 48p.

Author(s): Adam, Ursula; Rost, Harald.- 2018. 84p.

Author(s): Adam, Ursula; Degen, Felix.- 2018. 67p.

Author(s): Adam, Ursula; Rost, Harald.- 2017. 72p.

Author(s): Bauer, Philipp; Mühling, Tanja; Rost, Harald.- 2013. 50p.

Author(s): Elsas, Susanne; Schmid, Anna.- 2020. 90p.

Author(s): Rinklake, Annika; Elsas, Susanne; Möhrle, Theresa.- 2022. 90p.