function transferPreSigned(address _from,
                             address _to,
                             uint256 _value,
                             uint256 _fee,
                             uint256 _nonce,
                             uint8 _v,
                             bytes32 _r,
                             bytes32 _s) public whenNotPaused returns (bool) {
    return super.transferPreSigned(_from, _to, _value, _fee, _nonce, _v, _r, _s);
  }