default search action
Google
Google Scholar
Semantic Scholar
Internet Archive Scholar
CiteSeerX
ORCIDChristian Ullrich
Person information
Refine list
refinements active!
zoomed in on ?? of ?? records
view refined list in
export refined list as
2010 – 2019
- 2019
[c10]Marcus Mast, Ina Kaup, Sebastian Krüger, Christian Ullrich, Robert Schneider, Susanne Bay:
Exploring the Benefits of Holographic Mixed Reality for Preoperative Planning with 3D Medical Images. MuC (Workshopband) 2019- 2015
- [c9]Christian Ullrich, Sergiu Dotenco
, Florian Gallwitz:
A hybrid approach for simultaneous obstacle avoidance and stabilization of dynamic bipedal walking using the aldebaran nao robot. I4CS 2015: 1-6 - 2014
- [c8]Marcus Kaiser, Christian Ullrich:
Estimation accuracy in Large is Programs - Insights from a Descriptive Case Study. ECIS 2014 - [c7]Carsten Klaus, Felix Krause, Christian Ullrich:
Determining the Business Value of Volume Flexibility for Service Providers - a Real options Approach. ECIS 2014 - 2013
- [j2]Christian Ullrich:
Valuation of IT Investments Using Real Options Theory. Bus. Inf. Syst. Eng. 5(5): 331-341 (2013) - [j1]Christian Ullrich:
Bewertung von IT-Investitionen mit dem Realoptionsansatz. Wirtschaftsinf. 55(5): 333-345 (2013) - 2010
- [c6]Kathrin Susanne Braunwarth, Christian Ullrich:
Valuating Business Process Flexibility achieved through an Alternative Execution Path. ECIS 2010: 24
2000 – 2009
- 2009
- [b1]Christian Ullrich:
Forecasting and Hedging in the Foreign Exchange Markets. Karlsruhe University, Germany, 2009 - [c5]Dennis Diepold, Christian Ullrich, Alexander Wehrmann, Steffen Zimmermann:
A real options approach for valuating intertemporal interdependencies within a value-based IT portfolio management - A risk-return perspective. ECIS 2009: 2036-2047 - 2006
- [c4]Christian Ullrich, Detlef Seese, Stephan K. Chalup:
Foreign Exchange Trading with Support Vector Machines. GfKl 2006: 539-546 - 2005
- [c3]Christian Ullrich, Otto K. Ferstl:
Entwicklung von Experimentierumgebungen für den Erwerb von Problemlösefähigkeit. Wirtschaftsinformatik 2005: 807-826 - 2004
- [c2]Otto K. Ferstl, Christian Ullrich:
Eine MultiView-Benutzungsoberfläche für integrierte Lernumgebungen. DeLFI 2004: 103-115 - 2000
- [c1]Otto K. Ferstl, Karsten Hahn, Klaus Schmitz, Christian Ullrich:
Funktionen und Architektur einer Internet-Lernumgebung für individuelles und kooperatives Lernen. D-CSCL 2000: 53-68
1990 – 1999
- 1990
- [e1]Christian Ullrich:
Computer Arithmetic and Self-Validating Numerical Methods. Notes and reports in mathematics in science and engineering 7, Academic Press 1990, ISBN 978-0-12-708245-5 [contents]
Coauthor Index
manage site settings
To protect your privacy, all features that rely on external API calls from your browser are turned off by default. You need to opt-in for them to become active. All settings here will be stored as cookies with your web browser. For more information see our F.A.Q.
Unpaywalled article links
Add open access links from 
to the list of external document links (if available).
Privacy notice: By enabling the option above, your browser will contact the API of unpaywall.org to load hyperlinks to open access articles. Although we do not have any reason to believe that your call will be tracked, we do not have any control over how the remote server uses your data. So please proceed with care and consider checking the Unpaywall privacy policy.
Archived links via Wayback Machine
For web page which are no longer available, try to retrieve content from the 
of the Internet Archive (if available).
Privacy notice: By enabling the option above, your browser will contact the API of archive.org to check for archived content of web pages that are no longer available. Although we do not have any reason to believe that your call will be tracked, we do not have any control over how the remote server uses your data. So please proceed with care and consider checking the Internet Archive privacy policy.
Reference lists
Add a list of references from 
, 
, and 
to record detail pages.
load references from crossref.org and opencitations.net
Privacy notice: By enabling the option above, your browser will contact the APIs of crossref.org, opencitations.net, and semanticscholar.org to load article reference information. Although we do not have any reason to believe that your call will be tracked, we do not have any control over how the remote server uses your data. So please proceed with care and consider checking the Crossref privacy policy and the OpenCitations privacy policy, as well as the AI2 Privacy Policy covering Semantic Scholar.
Citation data
Add a list of citing articles from and to record detail pages.
load citations from opencitations.net
Privacy notice: By enabling the option above, your browser will contact the API of opencitations.net and semanticscholar.org to load citation information. Although we do not have any reason to believe that your call will be tracked, we do not have any control over how the remote server uses your data. So please proceed with care and consider checking the OpenCitations privacy policy as well as the AI2 Privacy Policy covering Semantic Scholar.
OpenAlex data
Load additional information about publications from 
.
Privacy notice: By enabling the option above, your browser will contact the API of openalex.org to load additional information. Although we do not have any reason to believe that your call will be tracked, we do not have any control over how the remote server uses your data. So please proceed with care and consider checking the information given by OpenAlex.
last updated on 2024-04-25 05:52 CEST by the dblp team
all metadata released as open data under CC0 1.0 license
see also: Terms of Use | Privacy Policy | Imprint
dblp was originally created in 1993 at:
since 2018, dblp has been operated and maintained by:
the dblp computer science bibliography is funded and supported by:
