WIESCHKE, J.; SCHACHT, D. D.; SPENSBERGER, F.; KLINKHAMMER, N.; GRGIC, M. 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. Measurement Instruments for the Social Sciences, v. 4, n. 1, p. Article e11073, 12 May 2022.