TY - JOUR PY - 1958// TI - Planned swimming instruction for small children JO - Offentliche Gesundheitswesen A1 - Lorenz, K. SP - 101 EP - 103 VL - 20 IS - 3 N2 - unavailable. Keywords: Drowning; Drowning Prevention; Water Safety LA - de SN - 0029-8573 UR - http://dx.doi.org/ ID - ref1 ER -