Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Year | Men's singles | Women's singles | Men's doubles | Women's doubles | Mixed doubles |
| --- | --- | --- | --- | --- | --- |
| 1971.0 | Kenneth Wain | Barbara Martin | Alfred Cefai Kenneth Wain | Carrol McKenzie Hazel Tough | John Farmer Barbara Martin |
| 1972.0 | David Jepson | Norma Lovett | David Jepson Buck Ryan | Norma Lovett Patricia Hodson | David Jepson Sandra Jepson |
| 1973.0 | Gert Lazarotti | Elisabeth Schechtner | Bert Lazarotti George Hoffmann | Gitte Lynge Joana Fagerlund | Berthold Auer Elisabeth Schechtner |
| 1974.0 | Frank Andersen | Jette Moberg | Frank Andersen Peter Morck | Jette Moberg Suzanne Pilegaard | Frank Andersen Jette Moberg |
| 1975.0 | Peter Morck | Suzanne Pilegaard | Alfred Hofer Dieter Hofer | Charlotte Andersen Suzanne Pilegaard | Alfred Hofer Pat Smiles |
| 1976.0 | Alfred Hofer | Pat Smiles | Alfred Cefai Kenneth Wain | Carmen Worley Doreen Cann | Alfred Hofer Pat Smiles |
| 1977.0 | No competition | No competition | No competition | No competition | No competition |
| 1978.0 | Axel Rosenow | Joyce Abdilla | Werner Langthaler Gerhard Brandl | Joyce Abdilla Marcelle Micallef | Axel Rosenow Marion Rosenow |
| 1979.0 | Axel Rosenow | Joyce Abdilla | Vincent Curmi Paul Vella | Joyce Abdilla Marcelle Micalegg | Axel Rosenow Marion Rosenow |
| 1980.0 | Joachim Reiche | Claudia Steidler | Joachim Reiche D. Werntz | Claudia Steidler Marion Rosenow | Axel Rosenow Marion Rosenow |
| 1981.0 | David Eddy | Muriel Cain | L. Merrild M. Mogensen | Muriel Cain Pauline Kennish | M. Morgensen H. Karlsson |
| 1982.0 | Clemens Wortel | Muriel Cain | P. Mead P. Cannel | Muriel Cain Pauline Kennish | C. D. Lichtenberg L. Riiser |
| 1983.0 | David Eddy | Muriel Cain | David Eddy Chris Baxter | Muriel Cain Pauline Kennish | Clemens Wortel Barbara Kolander |
| 1984.0 | Tariq Farooq | Liselotte Blumer | B. Krammer J. Thau | Liselotte Blumer Corinne Sonnet | Martin Skovgaard Anette Larsen |
| 1985.0 | Martin Skovgaard | Bente Hansen | Martin Skovgaard Henrik Neergaard | Debbie Buddle Jane Banham | Martin Skovgaard Anette Larsen |
| 1986.0 | Denis Tjin-Asjoe | Doris Gerstenkorn | Martin Skovgaard Jens Moller Madsen | Helga Schönbauer Heidemarie Himsl | Andrew Mickleborough Pauline Guest |
| 1987.0 | Hubert Müller | Alison Fisher | Martin Skovgaard Jens Moller Madsen | Alison Fisher Carol Liem | Arless Tjin Asjoe Carol Liem |
| 1988.0 | Tony Tuominen | Alison Fisher | Thomas Althaus Hubert Müller | Diana Koleva Andrea Roschinsky | Thomas Althaus Charlotte Pederson |
| 1989.0 | Klaus Fischer | Diana Koleva | Klaus Fischer Heinz Fischer | Diana Koleva Emilia Dimitrova | Vladimir Balun Emilia Dimitrova |
| 1990.0 | Claus Thomsen | Mira Sunari | Michael Søgaard Martin Skovgaard | Monika Cassens Petra Michalowsky | Michael Keck Mira Sundari |
| 1991.0 | No competition | No competition | No competition | No competition | No competition |
| 1992.0 | Tomasz Mendrek | Irina Serova | Kai Abraham Heinz Fischer | Diana Koleva Diana Filipova | Kai Abraham Sabine Ploner |
Question:
Name the mixed doubles for year before 1991 and men's doubles of david jepson buck ryan
Answer:
David Jepson Sandra Jepson