function _createPanels( oForm ) {

		var aVisibleContainers = oForm.getVisibleFormContainers();
		var iVisibleContainers = aVisibleContainers.length;
		var oContainer;
		var sContainerId;
		var oPanel;
		var oRFLayout;
		var i = 0;
		for ( i = 0; i < iVisibleContainers; i++) {
			oContainer = aVisibleContainers[i];
			oContainer._checkProperties();
			sContainerId = oContainer.getId();
			oPanel = undefined;
			oRFLayout = undefined;
			if (this.mContainers[sContainerId] && this.mContainers[sContainerId][1]) {
				// ResponsiveFlowLayout already created
				oRFLayout = this.mContainers[sContainerId][1];
			} else {
				oRFLayout = _createResponsiveFlowLayout.call(this, oContainer, undefined);
			}

			var oTitle = oContainer.getTitle();
			var oToolbar = oContainer.getToolbar();
			if (oToolbar || oTitle || oContainer.getExpandable()) {
				// only if container has a title a panel is used
				if (this.mContainers[sContainerId] && this.mContainers[sContainerId][0]) {
					// Panel already created
					oPanel = this.mContainers[sContainerId][0];
				} else {
					oPanel = _createPanel.call(this, oContainer, oRFLayout);
					_changeGetLayoutDataOfResponsiveFlowLayout(oRFLayout, true);
				}
				oRFLayout.removeStyleClass("sapUiRLContainer");
			} else {
				// panel not longer needed
				if (this.mContainers[sContainerId] && this.mContainers[sContainerId][0]) {
					_deletePanel(this.mContainers[sContainerId][0]);
					_changeGetLayoutDataOfResponsiveFlowLayout(oRFLayout, false);
				}
				oRFLayout.addStyleClass("sapUiRLContainer");
			}

			var mContent = _createContent.call(this, oContainer, oRFLayout);

			this.mContainers[sContainerId] = [oPanel, oRFLayout, mContent];
		}

		var iObjectLength = Object.keys(this.mContainers).length;
		if (iVisibleContainers < iObjectLength) {
			// delete old containers panels
			for ( sContainerId in this.mContainers) {
				var bFound = false;
				for ( i = 0; i < iVisibleContainers; i++) {
					oContainer = aVisibleContainers[i];
					if (sContainerId == oContainer.getId()) {
						bFound = true;
						break;
					}
				}
				if (!bFound) {
					_cleanContainer.call(this, sContainerId);
				}
			}
		}

	}
As Elements must not have a DOM reference it is not sure if one exists.
In this Layout each <code>FormElement</code> is represented by an own ResponsiveFlowLayout.
So the DOM of this <code>ResponsiveFlowLayout</code> is returned
@param {sap.ui.layout.form.FormElement} oElement <code>FormElement</code>
@return {Element|null} The Element's DOM representation or null
@private