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 |
| --- | --- | --- | --- | --- | --- |
| 1986.0 | Armand Jehle | Cornelia Marxer | Armand Jehle Markus Becker | Cornelia Marxer Astrid Wanger | Lothar Iser Astrid Wanger |
| 1987.0 | Armand Jehle | Cornelia Marxer | Armand Jehle Markus Becker | Cornelia Marxer Astrid Wanger | Lothar Iser Astrid Wanger |
| 1988.0 | Armand Jehle | Cornelia Marxer | Guenther Schaedler Mario Minder | Cornelia Marxer Astrid Wanger | Mario Minder Astrid Wanger |
| 1989.0 | Mario Minder | Astrid Wanger | Guenther Schaedler Mario Minder | Cornelia Marxer Astrid Wanger | Mario Minder Astrid Wanger |
| 1990.0 | Mario Minder | Myriam Eisensohn | Ernst Bolkart Roland Hilti | no competition | Mario Minder Astrid Wanger |
| 1991.0 | Armand Jehle | Astrid Eidenbenz | no competition | no competition | no competition |
| 1992.0 | Armand Jehle | Nadine Velten | Guenther Schaedler Thomas Fischer | Andrea Fischer Silvia Baur | Thomas Fischer Andrea Fischer |
| 1993.0 | Michel Baumgartner | Nadine Velten | no competition | no competition | no competition |
| 1994.0 | Gunther Schadler | Nadine Velten | Lothar Iser Edi Niedhart | Michaela Ritter Nadine Velten | Roger Jacquat Patrizia Wanger |
| 1995.0 | Andreas Radl | Claudia Jehle | Lothar Iser Ralf Iser | Karin Lehmann Birgit Oehri | Andreas Radl Karin Lehmann |
| 1996.0 | Guenther Schaedler | Astrid Eidenbenz | Andreas Radl Sandro Woodtli | Daniela Kressig Vreni Altherr | Sandro Woodtli Georgia Timmermann |
| 1997.0 | Armand Jehle | Anja Buechel | Kilian Pfister Roger Jacquat | Anja Buchel Michaela Ritter | Roger Jacquat Patrizia Wanger |
| 1998.0 | Armand Jehle | Astrid Eidenbenz | Kilian Pfister Frank Kamsma | no competition | no competition |
| 1999.0 | Guenther Schaedler | Bettina Kaiser | Kilian Pfister Frank Kamsma | Bettina Kaiser Claudia Jehle | Kilian Pfister Bettina Kaiser |
| 2000.0 | Kilian Pfister | Michaela Ritter | Kilian Pfister Frank Kamsma | Claudia Jehle Caroline Schneider | Kilian Pfister Caroline Schneider |
| 2001.0 | Armand Jehle | Michaela Ritter | Armand Jehle Bruno Staeheli | Claudia Jehle Caroline Schneider | Kilian Pfister Caroline Schneider |
| 2002.0 | Kilian Pfister | Claudia Jehle | Kilian Pfister Walter Sturm | Astrid Eidenbenz Claudia Jehle | Kilian Pfister Nadia Gartmann |
| 2003.0 | Andreas Radl | Michaela Ritter | Roland Hilti Zeno John | Michaela Ritter Doris DiMarzio | Zeno John Michaela Ritter |
| 2004.0 | Kilian Pfister | Daniela Kressig | Andreas Radl Kilian Pfister | Claudia Jehle Carolin Schneider | Walter Sturm Carolin Schneider |
| 2005.0 | Kilian Pfister | Daniela Litscher | Michael Litscher Roger Jacquat | Claudia Jehle Carolin Schneider | Kilian Pfister Doris DiMarzio |
| 2006.0 | Kilian Pfister | no competition | Roland Hilti Kilian Pfister | Claudia Jehle Carolin Schneider | Kilian Pfister Doris DiMarzio |
| 2007.0 | Kilian Pfister | no competition | Roland Hilti Kilian Pfister | no competition | Zeno John Carolin Schneider |
| 2008.0 | Kilian Pfister | Nadia Gartmann | Roland Hilti Kilian Pfister | Nadia Gartmann Patricia Vögel | Kilian Pfister Silvie Brouwer |
| 2009.0 | Roland Hilti | no competition | Armand Jehle Bruno Stäheli | no competition | Michael Litscher Nadia Gartmann |
| 2010.0 | Roland Hilti | no competition | Michael Litscher Stanley Wee | Heather Booth Patrizia Vögel | Stanley Wee Heather Booth |
Question:
Women's singles of michaela ritter, and a Men's singles of andreas radl has what women's doubles?
Answer:
Michaela Ritter Doris DiMarzio