TY - LEGAL IS - K.91 Supplement 4 (09/2018) M3 - ITU-T Recommendations K-Series PY - 2018 A2 - International Telecommunication Union LA - en N1 - FEMU ID: 39945; EMF-Portal URL: https://www.emf-portal.org/en/article/39945 SP - 1-66 TI - Electromagnetic field considerations in smart sustainable cities UR - https://handle.itu.int/11.1002/1000/13792-en?locatt=format:pdf&auth ER -