TY - JOUR A1 - Wieschke, Johannes A1 - Schacht, Diana D. A1 - Spensberger, Florian A1 - Klinkhammer, Nicole A1 - Grgic, Mariana T1 - Establishing Multi-Perspective Instruments in Early Education during COVID-19: Measuring the Implementation of Protective Measures and the Subjective Level of Information about Pandemic-Related Regulations JF - Measurement Instruments for the Social Sciences Y1 - 2022 U6 - https://doi.org/10.1186/s42409-022-00033-2 SN - 2523-8930 IS - 2022,4 ER -