When the name of a candidate who did not file or become a petition candidate for nomination is written in and voted for as a candidate for a Councilmember, such person shall not be entitled to a certificate of nomination at the statewide primary election nor have his name placed on the general election ballot unless he shall have received not less than twenty percent (20%) of the total votes cast for the candidate receiving the greatest number of votes in the precinct or ward or the candidate receiving the greatest number of votes of the at-large candidates, whichever the case may be, at the preceding election in which candidates where elected to serve the ward, or of the at-large candidates if the election was held at large. (Ref. 17-107.02(6) RS Neb.) (Ord. No. 184, 1/4/77)